20895860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33703}}^1$

素因数の和:33743

約数の個数: 24

約数和(自身を含む): 45298176

約数和(自身を除く): 24402316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33703, 67406, 134812, 168515, 337030, 674060, 1044793, 2089586, 4179172, 5223965, 10447930, 20895860]

約数ペア:

[(1, 20895860), (2, 10447930), (4, 5223965), (5, 4179172), (10, 2089586), (20, 1044793), (31, 674060), (62, 337030), (124, 168515), (155, 134812), (310, 67406), (620, 33703)]