90181360

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15877}}^1$

素因数の和:15961

約数の個数: 40

約数和(自身を含む): 212638176

約数和(自身を除く): 122456816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15877, 31754, 63508, 79385, 127016, 158770, 254032, 317540, 635080, 1127267, 1270160, 2254534, 4509068, 5636335, 9018136, 11272670, 18036272, 22545340, 45090680, 90181360]

約数ペア:

[(1, 90181360), (2, 45090680), (4, 22545340), (5, 18036272), (8, 11272670), (10, 9018136), (16, 5636335), (20, 4509068), (40, 2254534), (71, 1270160), (80, 1127267), (142, 635080), (284, 317540), (355, 254032), (568, 158770), (710, 127016), (1136, 79385), (1420, 63508), (2840, 31754), (5680, 15877)]