158551280

素因数分解:

$2^4\times 5^1\times {\mathrm{1981891}}^1$

素因数の和:1981904

約数の個数: 20

約数和(自身を含む): 368631912

約数和(自身を除く): 210080632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1981891, 3963782, 7927564, 9909455, 15855128, 19818910, 31710256, 39637820, 79275640, 158551280]

約数ペア:

[(1, 158551280), (2, 79275640), (4, 39637820), (5, 31710256), (8, 19818910), (10, 15855128), (16, 9909455), (20, 7927564), (40, 3963782), (80, 1981891)]