20857916520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{1187}}^1$

素因数の和:1597

約数の個数: 384

約数和(自身を含む): 81840844800

約数和(自身を除く): 60982928280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 28, 30, 35, 36, 38, 40, 42, 45, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 114, 120, 126, 133, 140, 152, 168, 171, 180, 190, 210, 228, 252, 266, 280, 285, 315, 342, 360, 367, 380, 399, 420, 456, 504, 532, 570, 630, 665, 684, 734, 760, 798, 840, 855, 1064, 1101, 1140, 1187, 1197, 1260, 1330, 1368, 1468, 1596, 1710, 1835, 1995, 2202, 2280, 2374, 2394, 2520, 2569, 2660, 2936, 3192, 3303, 3420, 3561, 3670, 3990, 4404, 4748, 4788, 5138, 5320, 5505, 5935, 5985, 6606, 6840, 6973, 7122, 7340, 7707, 7980, 8309, 8808, 9496, 9576, 10276, 10683, 11010, 11870, 11970, 12845, 13212, 13946, 14244, 14680, 15414, 15960, 16515, 16618, 17805, 20552, 20919, 21366, 22020, 22553, 23121, 23740, 23940, 24927, 25690, 26424, 27892, 28488, 30828, 33030, 33236, 34865, 35610, 38535, 41545, 41838, 42732, 44040, 45106, 46242, 47480, 47880, 48811, 49854, 51380, 53415, 55784, 61656, 62757, 66060, 66472, 67659, 69730, 71220, 74781, 77070, 83090, 83676, 85464, 90212, 92484, 97622, 99708, 102760, 104595, 106830, 112765, 115605, 124635, 125514, 132120, 135318, 139460, 142440, 146433, 149562, 154140, 157871, 166180, 167352, 180424, 184968, 195244, 199416, 202977, 209190, 213660, 225530, 231210, 244055, 249270, 251028, 270636, 278920, 292866, 299124, 308280, 313785, 315742, 332360, 338295, 373905, 390488, 405954, 418380, 427320, 435629, 439299, 451060, 462420, 473613, 488110, 498540, 502056, 541272, 585732, 598248, 627570, 631484, 676590, 732165, 747810, 789355, 811908, 836760, 871258, 878598, 902120, 924840, 947226, 976220, 997080, 1014885, 1171464, 1255140, 1262968, 1306887, 1353180, 1420839, 1464330, 1495620, 1578710, 1623816, 1742516, 1757196, 1894452, 1952440, 2029770, 2178145, 2196495, 2368065, 2510280, 2613774, 2706360, 2841678, 2928660, 2991240, 3049403, 3157420, 3485032, 3514392, 3788904, 3920661, 4059540, 4356290, 4392990, 4736130, 5227548, 5683356, 5857320, 6098806, 6314840, 6534435, 7104195, 7841322, 8119080, 8276951, 8712580, 8785980, 9148209, 9472260, 10455096, 11366712, 12197612, 13068870, 14208390, 15247015, 15682644, 16553902, 17425160, 17571960, 18296418, 18944520, 19603305, 24395224, 24830853, 26137740, 27444627, 28416780, 30494030, 31365288, 33107804, 36592836, 39206610, 41384755, 45741045, 49661706, 52275480, 54889254, 56833560, 57938657, 60988060, 66215608, 73185672, 74492559, 78413220, 82769510, 91482090, 99323412, 109778508, 115877314, 121976120, 124154265, 137223135, 148985118, 156826440, 165539020, 173815971, 182964180, 198646824, 219557016, 231754628, 248308530, 274446270, 289693285, 297970236, 331078040, 347631942, 365928360, 372462795, 463509256, 496617060, 521447913, 548892540, 579386570, 595940472, 695263884, 744925590, 869079855, 993234120, 1042895826, 1097785080, 1158773140, 1390527768, 1489851180, 1738159710, 2085791652, 2317546280, 2607239565, 2979702360, 3476319420, 4171583304, 5214479130, 6952638840, 10428958260, 20857916520]

約数ペア:

[(1, 20857916520), (2, 10428958260), (3, 6952638840), (4, 5214479130), (5, 4171583304), (6, 3476319420), (7, 2979702360), (8, 2607239565), (9, 2317546280), (10, 2085791652), (12, 1738159710), (14, 1489851180), (15, 1390527768), (18, 1158773140), (19, 1097785080), (20, 1042895826), (21, 993234120), (24, 869079855), (28, 744925590), (30, 695263884), (35, 595940472), (36, 579386570), (38, 548892540), (40, 521447913), (42, 496617060), (45, 463509256), (56, 372462795), (57, 365928360), (60, 347631942), (63, 331078040), (70, 297970236), (72, 289693285), (76, 274446270), (84, 248308530), (90, 231754628), (95, 219557016), (105, 198646824), (114, 182964180), (120, 173815971), (126, 165539020), (133, 156826440), (140, 148985118), (152, 137223135), (168, 124154265), (171, 121976120), (180, 115877314), (190, 109778508), (210, 99323412), (228, 91482090), (252, 82769510), (266, 78413220), (280, 74492559), (285, 73185672), (315, 66215608), (342, 60988060), (360, 57938657), (367, 56833560), (380, 54889254), (399, 52275480), (420, 49661706), (456, 45741045), (504, 41384755), (532, 39206610), (570, 36592836), (630, 33107804), (665, 31365288), (684, 30494030), (734, 28416780), (760, 27444627), (798, 26137740), (840, 24830853), (855, 24395224), (1064, 19603305), (1101, 18944520), (1140, 18296418), (1187, 17571960), (1197, 17425160), (1260, 16553902), (1330, 15682644), (1368, 15247015), (1468, 14208390), (1596, 13068870), (1710, 12197612), (1835, 11366712), (1995, 10455096), (2202, 9472260), (2280, 9148209), (2374, 8785980), (2394, 8712580), (2520, 8276951), (2569, 8119080), (2660, 7841322), (2936, 7104195), (3192, 6534435), (3303, 6314840), (3420, 6098806), (3561, 5857320), (3670, 5683356), (3990, 5227548), (4404, 4736130), (4748, 4392990), (4788, 4356290), (5138, 4059540), (5320, 3920661), (5505, 3788904), (5935, 3514392), (5985, 3485032), (6606, 3157420), (6840, 3049403), (6973, 2991240), (7122, 2928660), (7340, 2841678), (7707, 2706360), (7980, 2613774), (8309, 2510280), (8808, 2368065), (9496, 2196495), (9576, 2178145), (10276, 2029770), (10683, 1952440), (11010, 1894452), (11870, 1757196), (11970, 1742516), (12845, 1623816), (13212, 1578710), (13946, 1495620), (14244, 1464330), (14680, 1420839), (15414, 1353180), (15960, 1306887), (16515, 1262968), (16618, 1255140), (17805, 1171464), (20552, 1014885), (20919, 997080), (21366, 976220), (22020, 947226), (22553, 924840), (23121, 902120), (23740, 878598), (23940, 871258), (24927, 836760), (25690, 811908), (26424, 789355), (27892, 747810), (28488, 732165), (30828, 676590), (33030, 631484), (33236, 627570), (34865, 598248), (35610, 585732), (38535, 541272), (41545, 502056), (41838, 498540), (42732, 488110), (44040, 473613), (45106, 462420), (46242, 451060), (47480, 439299), (47880, 435629), (48811, 427320), (49854, 418380), (51380, 405954), (53415, 390488), (55784, 373905), (61656, 338295), (62757, 332360), (66060, 315742), (66472, 313785), (67659, 308280), (69730, 299124), (71220, 292866), (74781, 278920), (77070, 270636), (83090, 251028), (83676, 249270), (85464, 244055), (90212, 231210), (92484, 225530), (97622, 213660), (99708, 209190), (102760, 202977), (104595, 199416), (106830, 195244), (112765, 184968), (115605, 180424), (124635, 167352), (125514, 166180), (132120, 157871), (135318, 154140), (139460, 149562), (142440, 146433)]