17681004080

素因数分解:

$2^4\times 5^1\times {\mathrm{221012551}}^1$

素因数の和:221012564

約数の個数: 20

約数和(自身を含む): 41108334672

約数和(自身を除く): 23427330592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 221012551, 442025102, 884050204, 1105062755, 1768100408, 2210125510, 3536200816, 4420251020, 8840502040, 17681004080]

約数ペア:

[(1, 17681004080), (2, 8840502040), (4, 4420251020), (5, 3536200816), (8, 2210125510), (10, 1768100408), (16, 1105062755), (20, 884050204), (40, 442025102), (80, 221012551)]