16728220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{26981}}^1$

素因数の和:27021

約数の個数: 24

約数和(自身を含む): 36263808

約数和(自身を除く): 19535588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 26981, 53962, 107924, 134905, 269810, 539620, 836411, 1672822, 3345644, 4182055, 8364110, 16728220]

約数ペア:

[(1, 16728220), (2, 8364110), (4, 4182055), (5, 3345644), (10, 1672822), (20, 836411), (31, 539620), (62, 269810), (124, 134905), (155, 107924), (310, 53962), (620, 26981)]