156940989020

素因数分解:

$2^2\times 5^1\times {\mathrm{7847049451}}^1$

素因数の和:7847049460

約数の個数: 12

約数和(自身を含む): 329576076984

約数和(自身を除く): 172635087964

約数列:

[1, 2, 4, 5, 10, 20, 7847049451, 15694098902, 31388197804, 39235247255, 78470494510, 156940989020]

約数ペア:

[(1, 156940989020), (2, 78470494510), (4, 39235247255), (5, 31388197804), (10, 15694098902), (20, 7847049451)]