80790140

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51133}}^1$

素因数の和:51221

約数の個数: 24

約数和(自身を含む): 171810240

約数和(自身を除く): 91020100

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 51133, 102266, 204532, 255665, 511330, 1022660, 4039507, 8079014, 16158028, 20197535, 40395070, 80790140]

約数ペア:

[(1, 80790140), (2, 40395070), (4, 20197535), (5, 16158028), (10, 8079014), (20, 4039507), (79, 1022660), (158, 511330), (316, 255665), (395, 204532), (790, 102266), (1580, 51133)]