90289240

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8783}}^1$

素因数の和:9051

約数の個数: 32

約数和(自身を含む): 203964480

約数和(自身を除く): 113675240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8783, 10280, 17566, 35132, 43915, 70264, 87830, 175660, 351320, 2257231, 4514462, 9028924, 11286155, 18057848, 22572310, 45144620, 90289240]

約数ペア:

[(1, 90289240), (2, 45144620), (4, 22572310), (5, 18057848), (8, 11286155), (10, 9028924), (20, 4514462), (40, 2257231), (257, 351320), (514, 175660), (1028, 87830), (1285, 70264), (2056, 43915), (2570, 35132), (5140, 17566), (8783, 10280)]