20447830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157291}}^1$

素因数の和:157311

約数の個数: 16

約数和(自身を含む): 39637584

約数和(自身を除く): 19189754

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157291, 314582, 786455, 1572910, 2044783, 4089566, 10223915, 20447830]

約数ペア:

[(1, 20447830), (2, 10223915), (5, 4089566), (10, 2044783), (13, 1572910), (26, 786455), (65, 314582), (130, 157291)]