20120457865

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{2851943}}^1$

素因数の和:2852048

約数の個数: 16

約数和(自身を含む): 25872835968

約数和(自身を除く): 5752378103

約数列:

[1, 5, 17, 83, 85, 415, 1411, 7055, 2851943, 14259715, 48483031, 236711269, 242415155, 1183556345, 4024091573, 20120457865]

約数ペア:

[(1, 20120457865), (5, 4024091573), (17, 1183556345), (83, 242415155), (85, 236711269), (415, 48483031), (1411, 14259715), (7055, 2851943)]