812857580

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{272771}}^1$

素因数の和:272929

約数の個数: 24

約数和(自身を含む): 1718463600

約数和(自身を除く): 905606020

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 272771, 545542, 1091084, 1363855, 2727710, 5455420, 40642879, 81285758, 162571516, 203214395, 406428790, 812857580]

約数ペア:

[(1, 812857580), (2, 406428790), (4, 203214395), (5, 162571516), (10, 81285758), (20, 40642879), (149, 5455420), (298, 2727710), (596, 1363855), (745, 1091084), (1490, 545542), (2980, 272771)]