22781980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87623}}^1$

素因数の和:87645

約数の個数: 24

約数和(自身を含む): 51522912

約数和(自身を除く): 28740932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 87623, 175246, 350492, 438115, 876230, 1139099, 1752460, 2278198, 4556396, 5695495, 11390990, 22781980]

約数ペア:

[(1, 22781980), (2, 11390990), (4, 5695495), (5, 4556396), (10, 2278198), (13, 1752460), (20, 1139099), (26, 876230), (52, 438115), (65, 350492), (130, 175246), (260, 87623)]