126366820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{79979}}^1$

素因数の和:80067

約数の個数: 24

約数和(自身を含む): 268732800

約数和(自身を除く): 142365980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 79979, 159958, 319916, 399895, 799790, 1599580, 6318341, 12636682, 25273364, 31591705, 63183410, 126366820]

約数ペア:

[(1, 126366820), (2, 63183410), (4, 31591705), (5, 25273364), (10, 12636682), (20, 6318341), (79, 1599580), (158, 799790), (316, 399895), (395, 319916), (790, 159958), (1580, 79979)]