15691405420

素因数分解:

$2^2\times 5^1\times {\mathrm{64579}}^1\times {\mathrm{12149}}^1$

素因数の和:76737

約数の個数: 24

約数和(自身を含む): 32955174000

約数和(自身を除く): 17263768580

約数列:

[1, 2, 4, 5, 10, 20, 12149, 24298, 48596, 60745, 64579, 121490, 129158, 242980, 258316, 322895, 645790, 1291580, 784570271, 1569140542, 3138281084, 3922851355, 7845702710, 15691405420]

約数ペア:

[(1, 15691405420), (2, 7845702710), (4, 3922851355), (5, 3138281084), (10, 1569140542), (20, 784570271), (12149, 1291580), (24298, 645790), (48596, 322895), (60745, 258316), (64579, 242980), (121490, 129158)]