80163980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{308323}}^1$

素因数の和:308345

約数の個数: 24

約数和(自身を含む): 181294512

約数和(自身を除く): 101130532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 308323, 616646, 1233292, 1541615, 3083230, 4008199, 6166460, 8016398, 16032796, 20040995, 40081990, 80163980]

約数ペア:

[(1, 80163980), (2, 40081990), (4, 20040995), (5, 16032796), (10, 8016398), (13, 6166460), (20, 4008199), (26, 3083230), (52, 1541615), (65, 1233292), (130, 616646), (260, 308323)]