9860240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 26040000

約数和(自身を除く): 16179760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 499, 520, 760, 988, 998, 1040, 1235, 1520, 1976, 1996, 2470, 2495, 3952, 3992, 4940, 4990, 6487, 7984, 9481, 9880, 9980, 12974, 18962, 19760, 19960, 25948, 32435, 37924, 39920, 47405, 51896, 64870, 75848, 94810, 103792, 123253, 129740, 151696, 189620, 246506, 259480, 379240, 493012, 518960, 616265, 758480, 986024, 1232530, 1972048, 2465060, 4930120, 9860240]

約数ペア:

[(1, 9860240), (2, 4930120), (4, 2465060), (5, 1972048), (8, 1232530), (10, 986024), (13, 758480), (16, 616265), (19, 518960), (20, 493012), (26, 379240), (38, 259480), (40, 246506), (52, 189620), (65, 151696), (76, 129740), (80, 123253), (95, 103792), (104, 94810), (130, 75848), (152, 64870), (190, 51896), (208, 47405), (247, 39920), (260, 37924), (304, 32435), (380, 25948), (494, 19960), (499, 19760), (520, 18962), (760, 12974), (988, 9980), (998, 9880), (1040, 9481), (1235, 7984), (1520, 6487), (1976, 4990), (1996, 4940), (2470, 3992), (2495, 3952)]