129807740

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{23431}}^1$

素因数の和:23717

約数の個数: 24

約数和(自身を含む): 273592032

約数和(自身を除く): 143784292

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 5540, 23431, 46862, 93724, 117155, 234310, 468620, 6490387, 12980774, 25961548, 32451935, 64903870, 129807740]

約数ペア:

[(1, 129807740), (2, 64903870), (4, 32451935), (5, 25961548), (10, 12980774), (20, 6490387), (277, 468620), (554, 234310), (1108, 117155), (1385, 93724), (2770, 46862), (5540, 23431)]