638750280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{108631}}^1$

素因数の和:108659

約数の個数: 96

約数和(自身を含む): 2229128640

約数和(自身を除く): 1590378360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 108631, 217262, 325893, 434524, 543155, 651786, 760417, 869048, 1086310, 1303572, 1520834, 1629465, 2172620, 2281251, 2607144, 3041668, 3258930, 3802085, 4345240, 4562502, 5322919, 6083336, 6517860, 7604170, 9125004, 10645838, 11406255, 13035720, 15208340, 15968757, 18250008, 21291676, 22812510, 26614595, 30416680, 31937514, 42583352, 45625020, 53229190, 63875028, 79843785, 91250040, 106458380, 127750056, 159687570, 212916760, 319375140, 638750280]

約数ペア:

[(1, 638750280), (2, 319375140), (3, 212916760), (4, 159687570), (5, 127750056), (6, 106458380), (7, 91250040), (8, 79843785), (10, 63875028), (12, 53229190), (14, 45625020), (15, 42583352), (20, 31937514), (21, 30416680), (24, 26614595), (28, 22812510), (30, 21291676), (35, 18250008), (40, 15968757), (42, 15208340), (49, 13035720), (56, 11406255), (60, 10645838), (70, 9125004), (84, 7604170), (98, 6517860), (105, 6083336), (120, 5322919), (140, 4562502), (147, 4345240), (168, 3802085), (196, 3258930), (210, 3041668), (245, 2607144), (280, 2281251), (294, 2172620), (392, 1629465), (420, 1520834), (490, 1303572), (588, 1086310), (735, 869048), (840, 760417), (980, 651786), (1176, 543155), (1470, 434524), (1960, 325893), (2940, 217262), (5880, 108631)]