80421812

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{648563}}^1$

素因数の和:648598

約数の個数: 12

約数和(自身を含む): 145278336

約数和(自身を除く): 64856524

約数列:

[1, 2, 4, 31, 62, 124, 648563, 1297126, 2594252, 20105453, 40210906, 80421812]

約数ペア:

[(1, 80421812), (2, 40210906), (4, 20105453), (31, 2594252), (62, 1297126), (124, 648563)]