168708560

素因数分解:

$2^4\times 5^1\times {\mathrm{2108857}}^1$

素因数の和:2108870

約数の個数: 20

約数和(自身を含む): 392247588

約数和(自身を除く): 223539028

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2108857, 4217714, 8435428, 10544285, 16870856, 21088570, 33741712, 42177140, 84354280, 168708560]

約数ペア:

[(1, 168708560), (2, 84354280), (4, 42177140), (5, 33741712), (8, 21088570), (10, 16870856), (16, 10544285), (20, 8435428), (40, 4217714), (80, 2108857)]