123430220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199081}}^1$

素因数の和:199121

約数の個数: 24

約数和(自身を含む): 267566208

約数和(自身を除く): 144135988

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 199081, 398162, 796324, 995405, 1990810, 3981620, 6171511, 12343022, 24686044, 30857555, 61715110, 123430220]

約数ペア:

[(1, 123430220), (2, 61715110), (4, 30857555), (5, 24686044), (10, 12343022), (20, 6171511), (31, 3981620), (62, 1990810), (124, 995405), (155, 796324), (310, 398162), (620, 199081)]