39909740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153499}}^1$

素因数の和:153521

約数の個数: 24

約数和(自身を含む): 90258000

約数和(自身を除く): 50348260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 153499, 306998, 613996, 767495, 1534990, 1995487, 3069980, 3990974, 7981948, 9977435, 19954870, 39909740]

約数ペア:

[(1, 39909740), (2, 19954870), (4, 9977435), (5, 7981948), (10, 3990974), (13, 3069980), (20, 1995487), (26, 1534990), (52, 767495), (65, 613996), (130, 306998), (260, 153499)]