20108140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77339}}^1$

素因数の和:77361

約数の個数: 24

約数和(自身を含む): 45475920

約数和(自身を除く): 25367780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77339, 154678, 309356, 386695, 773390, 1005407, 1546780, 2010814, 4021628, 5027035, 10054070, 20108140]

約数ペア:

[(1, 20108140), (2, 10054070), (4, 5027035), (5, 4021628), (10, 2010814), (13, 1546780), (20, 1005407), (26, 773390), (52, 386695), (65, 309356), (130, 154678), (260, 77339)]