20879100

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 288

約数和(自身を含む): 79161600

約数和(自身を除く): 58282500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 25, 27, 30, 33, 36, 37, 38, 44, 45, 50, 54, 55, 57, 60, 66, 74, 75, 76, 90, 95, 99, 100, 108, 110, 111, 114, 132, 135, 148, 150, 165, 171, 180, 185, 190, 198, 209, 220, 222, 225, 228, 270, 275, 285, 297, 300, 330, 333, 342, 370, 380, 396, 407, 418, 444, 450, 475, 495, 513, 540, 550, 555, 570, 594, 627, 660, 666, 675, 684, 703, 740, 814, 825, 836, 855, 900, 925, 950, 990, 999, 1026, 1045, 1100, 1110, 1140, 1188, 1221, 1254, 1332, 1350, 1406, 1425, 1485, 1628, 1650, 1665, 1710, 1850, 1881, 1900, 1980, 1998, 2035, 2052, 2090, 2109, 2220, 2442, 2475, 2508, 2565, 2700, 2775, 2812, 2850, 2970, 3135, 3300, 3330, 3420, 3515, 3663, 3700, 3762, 3996, 4070, 4180, 4218, 4275, 4884, 4950, 4995, 5130, 5225, 5550, 5643, 5700, 5940, 6105, 6270, 6327, 6660, 7030, 7326, 7425, 7524, 7733, 8140, 8325, 8436, 8550, 9405, 9900, 9990, 10175, 10260, 10450, 10545, 10989, 11100, 11286, 12210, 12540, 12654, 12825, 14060, 14652, 14850, 15466, 15675, 16650, 17100, 17575, 18315, 18810, 18981, 19980, 20350, 20900, 21090, 21978, 22572, 23199, 24420, 24975, 25308, 25650, 28215, 29700, 30525, 30932, 31350, 31635, 33300, 35150, 36630, 37620, 37962, 38665, 40700, 42180, 43956, 46398, 47025, 49950, 51300, 52725, 54945, 56430, 61050, 62700, 63270, 69597, 70300, 73260, 75924, 77330, 91575, 92796, 94050, 94905, 99900, 105450, 109890, 112860, 115995, 122100, 126540, 139194, 141075, 154660, 158175, 183150, 188100, 189810, 193325, 208791, 210900, 219780, 231990, 274725, 278388, 282150, 316350, 347985, 366300, 379620, 386650, 417582, 463980, 474525, 549450, 564300, 579975, 632700, 695970, 773300, 835164, 949050, 1043955, 1098900, 1159950, 1391940, 1739925, 1898100, 2087910, 2319900, 3479850, 4175820, 5219775, 6959700, 10439550, 20879100]

約数ペア:

[(1, 20879100), (2, 10439550), (3, 6959700), (4, 5219775), (5, 4175820), (6, 3479850), (9, 2319900), (10, 2087910), (11, 1898100), (12, 1739925), (15, 1391940), (18, 1159950), (19, 1098900), (20, 1043955), (22, 949050), (25, 835164), (27, 773300), (30, 695970), (33, 632700), (36, 579975), (37, 564300), (38, 549450), (44, 474525), (45, 463980), (50, 417582), (54, 386650), (55, 379620), (57, 366300), (60, 347985), (66, 316350), (74, 282150), (75, 278388), (76, 274725), (90, 231990), (95, 219780), (99, 210900), (100, 208791), (108, 193325), (110, 189810), (111, 188100), (114, 183150), (132, 158175), (135, 154660), (148, 141075), (150, 139194), (165, 126540), (171, 122100), (180, 115995), (185, 112860), (190, 109890), (198, 105450), (209, 99900), (220, 94905), (222, 94050), (225, 92796), (228, 91575), (270, 77330), (275, 75924), (285, 73260), (297, 70300), (300, 69597), (330, 63270), (333, 62700), (342, 61050), (370, 56430), (380, 54945), (396, 52725), (407, 51300), (418, 49950), (444, 47025), (450, 46398), (475, 43956), (495, 42180), (513, 40700), (540, 38665), (550, 37962), (555, 37620), (570, 36630), (594, 35150), (627, 33300), (660, 31635), (666, 31350), (675, 30932), (684, 30525), (703, 29700), (740, 28215), (814, 25650), (825, 25308), (836, 24975), (855, 24420), (900, 23199), (925, 22572), (950, 21978), (990, 21090), (999, 20900), (1026, 20350), (1045, 19980), (1100, 18981), (1110, 18810), (1140, 18315), (1188, 17575), (1221, 17100), (1254, 16650), (1332, 15675), (1350, 15466), (1406, 14850), (1425, 14652), (1485, 14060), (1628, 12825), (1650, 12654), (1665, 12540), (1710, 12210), (1850, 11286), (1881, 11100), (1900, 10989), (1980, 10545), (1998, 10450), (2035, 10260), (2052, 10175), (2090, 9990), (2109, 9900), (2220, 9405), (2442, 8550), (2475, 8436), (2508, 8325), (2565, 8140), (2700, 7733), (2775, 7524), (2812, 7425), (2850, 7326), (2970, 7030), (3135, 6660), (3300, 6327), (3330, 6270), (3420, 6105), (3515, 5940), (3663, 5700), (3700, 5643), (3762, 5550), (3996, 5225), (4070, 5130), (4180, 4995), (4218, 4950), (4275, 4884)]