98780240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4999}}^1$

素因数の和:5044

約数の個数: 80

約数和(自身を含む): 260400000

約数和(自身を除く): 161619760

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, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 4999, 9880, 9998, 19760, 19996, 24995, 39992, 49990, 64987, 79984, 94981, 99980, 129974, 189962, 199960, 259948, 324935, 379924, 399920, 474905, 519896, 649870, 759848, 949810, 1039792, 1234753, 1299740, 1519696, 1899620, 2469506, 2599480, 3799240, 4939012, 5198960, 6173765, 7598480, 9878024, 12347530, 19756048, 24695060, 49390120, 98780240]

約数ペア:

[(1, 98780240), (2, 49390120), (4, 24695060), (5, 19756048), (8, 12347530), (10, 9878024), (13, 7598480), (16, 6173765), (19, 5198960), (20, 4939012), (26, 3799240), (38, 2599480), (40, 2469506), (52, 1899620), (65, 1519696), (76, 1299740), (80, 1234753), (95, 1039792), (104, 949810), (130, 759848), (152, 649870), (190, 519896), (208, 474905), (247, 399920), (260, 379924), (304, 324935), (380, 259948), (494, 199960), (520, 189962), (760, 129974), (988, 99980), (1040, 94981), (1235, 79984), (1520, 64987), (1976, 49990), (2470, 39992), (3952, 24995), (4940, 19996), (4999, 19760), (9880, 9998)]