8127340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31259}}^1$

素因数の和:31281

約数の個数: 24

約数和(自身を含む): 18380880

約数和(自身を除く): 10253540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 31259, 62518, 125036, 156295, 312590, 406367, 625180, 812734, 1625468, 2031835, 4063670, 8127340]

約数ペア:

[(1, 8127340), (2, 4063670), (4, 2031835), (5, 1625468), (10, 812734), (13, 625180), (20, 406367), (26, 312590), (52, 156295), (65, 125036), (130, 62518), (260, 31259)]