86787940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{117281}}^1$

素因数の和:117327

約数の個数: 24

約数和(自身を含む): 187182072

約数和(自身を除く): 100394132

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 117281, 234562, 469124, 586405, 1172810, 2345620, 4339397, 8678794, 17357588, 21696985, 43393970, 86787940]

約数ペア:

[(1, 86787940), (2, 43393970), (4, 21696985), (5, 17357588), (10, 8678794), (20, 4339397), (37, 2345620), (74, 1172810), (148, 586405), (185, 469124), (370, 234562), (740, 117281)]