71820820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{123829}}^1$

素因数の和:123867

約数の個数: 24

約数和(自身を含む): 156025800

約数和(自身を除く): 84204980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 123829, 247658, 495316, 619145, 1238290, 2476580, 3591041, 7182082, 14364164, 17955205, 35910410, 71820820]

約数ペア:

[(1, 71820820), (2, 35910410), (4, 17955205), (5, 14364164), (10, 7182082), (20, 3591041), (29, 2476580), (58, 1238290), (116, 619145), (145, 495316), (290, 247658), (580, 123829)]