640347120

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{743}}^1$

素因数の和:794

約数の個数: 400

約数和(自身を含む): 2679114240

約数和(自身を除く): 2038767120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 48, 54, 56, 57, 60, 63, 70, 72, 76, 80, 81, 84, 90, 95, 105, 108, 112, 114, 120, 126, 133, 135, 140, 144, 152, 162, 168, 171, 180, 189, 190, 210, 216, 228, 240, 252, 266, 270, 280, 285, 304, 315, 324, 336, 342, 360, 378, 380, 399, 405, 420, 432, 456, 504, 513, 532, 540, 560, 567, 570, 630, 648, 665, 684, 720, 743, 756, 760, 798, 810, 840, 855, 912, 945, 1008, 1026, 1064, 1080, 1134, 1140, 1197, 1260, 1296, 1330, 1368, 1486, 1512, 1520, 1539, 1596, 1620, 1680, 1710, 1890, 1995, 2052, 2128, 2160, 2229, 2268, 2280, 2394, 2520, 2565, 2660, 2736, 2835, 2972, 3024, 3078, 3192, 3240, 3420, 3591, 3715, 3780, 3990, 4104, 4458, 4536, 4560, 4788, 5040, 5130, 5201, 5320, 5670, 5944, 5985, 6156, 6384, 6480, 6687, 6840, 7182, 7430, 7560, 7695, 7980, 8208, 8916, 9072, 9576, 10260, 10402, 10640, 10773, 11145, 11340, 11888, 11970, 12312, 13374, 13680, 14117, 14364, 14860, 15120, 15390, 15603, 15960, 17832, 17955, 19152, 20061, 20520, 20804, 21546, 22290, 22680, 23940, 24624, 26005, 26748, 28234, 28728, 29720, 30780, 31206, 31920, 33435, 35664, 35910, 40122, 41040, 41608, 42351, 43092, 44580, 45360, 46809, 47880, 52010, 53496, 53865, 56468, 57456, 59440, 60183, 61560, 62412, 66870, 70585, 71820, 78015, 80244, 83216, 84702, 86184, 89160, 93618, 95760, 98819, 100305, 104020, 106992, 107730, 112936, 120366, 123120, 124824, 127053, 133740, 140427, 141170, 143640, 156030, 160488, 169404, 172368, 178320, 187236, 197638, 200610, 208040, 211755, 215460, 225872, 234045, 240732, 249648, 254106, 267480, 280854, 282340, 287280, 296457, 300915, 312060, 320976, 338808, 374472, 381159, 395276, 401220, 416080, 421281, 423510, 430920, 468090, 481464, 494095, 508212, 534960, 561708, 564680, 592914, 601830, 624120, 635265, 677616, 702135, 748944, 762318, 790552, 802440, 842562, 847020, 861840, 889371, 936180, 962928, 988190, 1016424, 1123416, 1129360, 1143477, 1185828, 1203660, 1248240, 1270530, 1404270, 1482285, 1524636, 1581104, 1604880, 1685124, 1694040, 1778742, 1872360, 1905795, 1976380, 2032848, 2106405, 2246832, 2286954, 2371656, 2407320, 2541060, 2668113, 2808540, 2964570, 3049272, 3370248, 3388080, 3557484, 3744720, 3811590, 3952760, 4212810, 4446855, 4573908, 4743312, 4814640, 5082120, 5336226, 5617080, 5717385, 5929140, 6098544, 6740496, 7114968, 7623180, 7905520, 8004339, 8425620, 8893710, 9147816, 10164240, 10672452, 11234160, 11434770, 11858280, 13340565, 14229936, 15246360, 16008678, 16851240, 17787420, 18295632, 21344904, 22869540, 23716560, 26681130, 30492720, 32017356, 33702480, 35574840, 40021695, 42689808, 45739080, 53362260, 64034712, 71149680, 80043390, 91478160, 106724520, 128069424, 160086780, 213449040, 320173560, 640347120]

約数ペア:

[(1, 640347120), (2, 320173560), (3, 213449040), (4, 160086780), (5, 128069424), (6, 106724520), (7, 91478160), (8, 80043390), (9, 71149680), (10, 64034712), (12, 53362260), (14, 45739080), (15, 42689808), (16, 40021695), (18, 35574840), (19, 33702480), (20, 32017356), (21, 30492720), (24, 26681130), (27, 23716560), (28, 22869540), (30, 21344904), (35, 18295632), (36, 17787420), (38, 16851240), (40, 16008678), (42, 15246360), (45, 14229936), (48, 13340565), (54, 11858280), (56, 11434770), (57, 11234160), (60, 10672452), (63, 10164240), (70, 9147816), (72, 8893710), (76, 8425620), (80, 8004339), (81, 7905520), (84, 7623180), (90, 7114968), (95, 6740496), (105, 6098544), (108, 5929140), (112, 5717385), (114, 5617080), (120, 5336226), (126, 5082120), (133, 4814640), (135, 4743312), (140, 4573908), (144, 4446855), (152, 4212810), (162, 3952760), (168, 3811590), (171, 3744720), (180, 3557484), (189, 3388080), (190, 3370248), (210, 3049272), (216, 2964570), (228, 2808540), (240, 2668113), (252, 2541060), (266, 2407320), (270, 2371656), (280, 2286954), (285, 2246832), (304, 2106405), (315, 2032848), (324, 1976380), (336, 1905795), (342, 1872360), (360, 1778742), (378, 1694040), (380, 1685124), (399, 1604880), (405, 1581104), (420, 1524636), (432, 1482285), (456, 1404270), (504, 1270530), (513, 1248240), (532, 1203660), (540, 1185828), (560, 1143477), (567, 1129360), (570, 1123416), (630, 1016424), (648, 988190), (665, 962928), (684, 936180), (720, 889371), (743, 861840), (756, 847020), (760, 842562), (798, 802440), (810, 790552), (840, 762318), (855, 748944), (912, 702135), (945, 677616), (1008, 635265), (1026, 624120), (1064, 601830), (1080, 592914), (1134, 564680), (1140, 561708), (1197, 534960), (1260, 508212), (1296, 494095), (1330, 481464), (1368, 468090), (1486, 430920), (1512, 423510), (1520, 421281), (1539, 416080), (1596, 401220), (1620, 395276), (1680, 381159), (1710, 374472), (1890, 338808), (1995, 320976), (2052, 312060), (2128, 300915), (2160, 296457), (2229, 287280), (2268, 282340), (2280, 280854), (2394, 267480), (2520, 254106), (2565, 249648), (2660, 240732), (2736, 234045), (2835, 225872), (2972, 215460), (3024, 211755), (3078, 208040), (3192, 200610), (3240, 197638), (3420, 187236), (3591, 178320), (3715, 172368), (3780, 169404), (3990, 160488), (4104, 156030), (4458, 143640), (4536, 141170), (4560, 140427), (4788, 133740), (5040, 127053), (5130, 124824), (5201, 123120), (5320, 120366), (5670, 112936), (5944, 107730), (5985, 106992), (6156, 104020), (6384, 100305), (6480, 98819), (6687, 95760), (6840, 93618), (7182, 89160), (7430, 86184), (7560, 84702), (7695, 83216), (7980, 80244), (8208, 78015), (8916, 71820), (9072, 70585), (9576, 66870), (10260, 62412), (10402, 61560), (10640, 60183), (10773, 59440), (11145, 57456), (11340, 56468), (11888, 53865), (11970, 53496), (12312, 52010), (13374, 47880), (13680, 46809), (14117, 45360), (14364, 44580), (14860, 43092), (15120, 42351), (15390, 41608), (15603, 41040), (15960, 40122), (17832, 35910), (17955, 35664), (19152, 33435), (20061, 31920), (20520, 31206), (20804, 30780), (21546, 29720), (22290, 28728), (22680, 28234), (23940, 26748), (24624, 26005)]