664458440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{2999}}^1$

素因数の和:3230

約数の個数: 64

約数和(自身を含む): 1555200000

約数和(自身を除く): 890741560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 191, 232, 290, 382, 580, 764, 955, 1160, 1528, 1910, 2999, 3820, 5539, 5998, 7640, 11078, 11996, 14995, 22156, 23992, 27695, 29990, 44312, 55390, 59980, 86971, 110780, 119960, 173942, 221560, 347884, 434855, 572809, 695768, 869710, 1145618, 1739420, 2291236, 2864045, 3478840, 4582472, 5728090, 11456180, 16611461, 22912360, 33222922, 66445844, 83057305, 132891688, 166114610, 332229220, 664458440]

約数ペア:

[(1, 664458440), (2, 332229220), (4, 166114610), (5, 132891688), (8, 83057305), (10, 66445844), (20, 33222922), (29, 22912360), (40, 16611461), (58, 11456180), (116, 5728090), (145, 4582472), (191, 3478840), (232, 2864045), (290, 2291236), (382, 1739420), (580, 1145618), (764, 869710), (955, 695768), (1160, 572809), (1528, 434855), (1910, 347884), (2999, 221560), (3820, 173942), (5539, 119960), (5998, 110780), (7640, 86971), (11078, 59980), (11996, 55390), (14995, 44312), (22156, 29990), (23992, 27695)]