291214160

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{54331}}^1$

素因数の和:54411

約数の個数: 40

約数和(自身を含む): 687191136

約数和(自身を除く): 395976976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 54331, 108662, 217324, 271655, 434648, 543310, 869296, 1086620, 2173240, 3640177, 4346480, 7280354, 14560708, 18200885, 29121416, 36401770, 58242832, 72803540, 145607080, 291214160]

約数ペア:

[(1, 291214160), (2, 145607080), (4, 72803540), (5, 58242832), (8, 36401770), (10, 29121416), (16, 18200885), (20, 14560708), (40, 7280354), (67, 4346480), (80, 3640177), (134, 2173240), (268, 1086620), (335, 869296), (536, 543310), (670, 434648), (1072, 271655), (1340, 217324), (2680, 108662), (5360, 54331)]