161713240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{310987}}^1$

素因数の和:311011

約数の個数: 32

約数和(自身を含む): 391844880

約数和(自身を除く): 230131640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 310987, 621974, 1243948, 1554935, 2487896, 3109870, 4042831, 6219740, 8085662, 12439480, 16171324, 20214155, 32342648, 40428310, 80856620, 161713240]

約数ペア:

[(1, 161713240), (2, 80856620), (4, 40428310), (5, 32342648), (8, 20214155), (10, 16171324), (13, 12439480), (20, 8085662), (26, 6219740), (40, 4042831), (52, 3109870), (65, 2487896), (104, 1554935), (130, 1243948), (260, 621974), (520, 310987)]