87352420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{140891}}^1$

素因数の和:140931

約数の個数: 24

約数和(自身を含む): 189358848

約数和(自身を除く): 102006428

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 140891, 281782, 563564, 704455, 1408910, 2817820, 4367621, 8735242, 17470484, 21838105, 43676210, 87352420]

約数ペア:

[(1, 87352420), (2, 43676210), (4, 21838105), (5, 17470484), (10, 8735242), (20, 4367621), (31, 2817820), (62, 1408910), (124, 704455), (155, 563564), (310, 281782), (620, 140891)]