20807020025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{1409}}^1\times {\mathrm{53699}}^1$

素因数の和:55129

約数の個数: 24

約数和(自身を含む): 28166724000

約数和(自身を除く): 7359703975

約数列:

[1, 5, 11, 25, 55, 275, 1409, 7045, 15499, 35225, 53699, 77495, 268495, 387475, 590689, 1342475, 2953445, 14767225, 75661891, 378309455, 832280801, 1891547275, 4161404005, 20807020025]

約数ペア:

[(1, 20807020025), (5, 4161404005), (11, 1891547275), (25, 832280801), (55, 378309455), (275, 75661891), (1409, 14767225), (7045, 2953445), (15499, 1342475), (35225, 590689), (53699, 387475), (77495, 268495)]