87240620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{106391}}^1$

素因数の和:106441

約数の個数: 24

約数和(自身を含む): 187675488

約数和(自身を除く): 100434868

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 106391, 212782, 425564, 531955, 1063910, 2127820, 4362031, 8724062, 17448124, 21810155, 43620310, 87240620]

約数ペア:

[(1, 87240620), (2, 43620310), (4, 21810155), (5, 17448124), (10, 8724062), (20, 4362031), (41, 2127820), (82, 1063910), (164, 531955), (205, 425564), (410, 212782), (820, 106391)]