201875440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{499}}^1$

素因数の和:914

約数の個数: 80

約数和(自身を含む): 507780000

約数和(自身を除く): 305904560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 389, 499, 520, 778, 998, 1040, 1556, 1945, 1996, 2495, 3112, 3890, 3992, 4990, 5057, 6224, 6487, 7780, 7984, 9980, 10114, 12974, 15560, 19960, 20228, 25285, 25948, 31120, 32435, 39920, 40456, 50570, 51896, 64870, 80912, 101140, 103792, 129740, 194111, 202280, 259480, 388222, 404560, 518960, 776444, 970555, 1552888, 1941110, 2523443, 3105776, 3882220, 5046886, 7764440, 10093772, 12617215, 15528880, 20187544, 25234430, 40375088, 50468860, 100937720, 201875440]

約数ペア:

[(1, 201875440), (2, 100937720), (4, 50468860), (5, 40375088), (8, 25234430), (10, 20187544), (13, 15528880), (16, 12617215), (20, 10093772), (26, 7764440), (40, 5046886), (52, 3882220), (65, 3105776), (80, 2523443), (104, 1941110), (130, 1552888), (208, 970555), (260, 776444), (389, 518960), (499, 404560), (520, 388222), (778, 259480), (998, 202280), (1040, 194111), (1556, 129740), (1945, 103792), (1996, 101140), (2495, 80912), (3112, 64870), (3890, 51896), (3992, 50570), (4990, 40456), (5057, 39920), (6224, 32435), (6487, 31120), (7780, 25948), (7984, 25285), (9980, 20228), (10114, 19960), (12974, 15560)]