1861997490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1\times {\mathrm{599}}^1$

素因数の和:1041

約数の個数: 128

約数和(自身を含む): 5158080000

約数和(自身を除く): 3296082510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 87, 90, 135, 145, 174, 261, 270, 290, 397, 435, 522, 599, 783, 794, 870, 1191, 1198, 1305, 1566, 1797, 1985, 2382, 2610, 2995, 3573, 3594, 3915, 3970, 5391, 5955, 5990, 7146, 7830, 8985, 10719, 10782, 11513, 11910, 16173, 17371, 17865, 17970, 21438, 23026, 26955, 32346, 34539, 34742, 35730, 52113, 53595, 53910, 57565, 69078, 80865, 86855, 103617, 104226, 107190, 115130, 156339, 161730, 172695, 173710, 207234, 237803, 260565, 310851, 312678, 345390, 469017, 475606, 518085, 521130, 621702, 713409, 781695, 938034, 1036170, 1189015, 1426818, 1554255, 1563390, 2140227, 2345085, 2378030, 3108510, 3567045, 4280454, 4690170, 6420681, 6896287, 7134090, 10701135, 12841362, 13792574, 20688861, 21402270, 32103405, 34481435, 41377722, 62066583, 64206810, 68962870, 103444305, 124133166, 186199749, 206888610, 310332915, 372399498, 620665830, 930998745, 1861997490]

約数ペア:

[(1, 1861997490), (2, 930998745), (3, 620665830), (5, 372399498), (6, 310332915), (9, 206888610), (10, 186199749), (15, 124133166), (18, 103444305), (27, 68962870), (29, 64206810), (30, 62066583), (45, 41377722), (54, 34481435), (58, 32103405), (87, 21402270), (90, 20688861), (135, 13792574), (145, 12841362), (174, 10701135), (261, 7134090), (270, 6896287), (290, 6420681), (397, 4690170), (435, 4280454), (522, 3567045), (599, 3108510), (783, 2378030), (794, 2345085), (870, 2140227), (1191, 1563390), (1198, 1554255), (1305, 1426818), (1566, 1189015), (1797, 1036170), (1985, 938034), (2382, 781695), (2610, 713409), (2995, 621702), (3573, 521130), (3594, 518085), (3915, 475606), (3970, 469017), (5391, 345390), (5955, 312678), (5990, 310851), (7146, 260565), (7830, 237803), (8985, 207234), (10719, 173710), (10782, 172695), (11513, 161730), (11910, 156339), (16173, 115130), (17371, 107190), (17865, 104226), (17970, 103617), (21438, 86855), (23026, 80865), (26955, 69078), (32346, 57565), (34539, 53910), (34742, 53595), (35730, 52113)]