90215174

素因数分解:

$2^1\times 7^4\times {\mathrm{18787}}^1$

素因数の和:18817

約数の個数: 20

約数和(自身を含む): 157875564

約数和(自身を除く): 67660390

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 18787, 37574, 131509, 263018, 920563, 1841126, 6443941, 12887882, 45107587, 90215174]

約数ペア:

[(1, 90215174), (2, 45107587), (7, 12887882), (14, 6443941), (49, 1841126), (98, 920563), (343, 263018), (686, 131509), (2401, 37574), (4802, 18787)]