86676640

素因数分解:

$2^5\times 5^1\times {\mathrm{271}}^1\times {\mathrm{1999}}^1$

素因数の和:2285

約数の個数: 48

約数和(自身を含む): 205632000

約数和(自身を除く): 118955360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 271, 542, 1084, 1355, 1999, 2168, 2710, 3998, 4336, 5420, 7996, 8672, 9995, 10840, 15992, 19990, 21680, 31984, 39980, 43360, 63968, 79960, 159920, 319840, 541729, 1083458, 2166916, 2708645, 4333832, 5417290, 8667664, 10834580, 17335328, 21669160, 43338320, 86676640]

約数ペア:

[(1, 86676640), (2, 43338320), (4, 21669160), (5, 17335328), (8, 10834580), (10, 8667664), (16, 5417290), (20, 4333832), (32, 2708645), (40, 2166916), (80, 1083458), (160, 541729), (271, 319840), (542, 159920), (1084, 79960), (1355, 63968), (1999, 43360), (2168, 39980), (2710, 31984), (3998, 21680), (4336, 19990), (5420, 15992), (7996, 10840), (8672, 9995)]