78790220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127081}}^1$

素因数の和:127121

約数の個数: 24

約数和(自身を含む): 170798208

約数和(自身を除く): 92007988

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 127081, 254162, 508324, 635405, 1270810, 2541620, 3939511, 7879022, 15758044, 19697555, 39395110, 78790220]

約数ペア:

[(1, 78790220), (2, 39395110), (4, 19697555), (5, 15758044), (10, 7879022), (20, 3939511), (31, 2541620), (62, 1270810), (124, 635405), (155, 508324), (310, 254162), (620, 127081)]