20773040

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2521}}^1$

素因数の和:2637

約数の個数: 40

約数和(自身を含む): 48785568

約数和(自身を除く): 28012528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 2521, 4120, 5042, 8240, 10084, 12605, 20168, 25210, 40336, 50420, 100840, 201680, 259663, 519326, 1038652, 1298315, 2077304, 2596630, 4154608, 5193260, 10386520, 20773040]

約数ペア:

[(1, 20773040), (2, 10386520), (4, 5193260), (5, 4154608), (8, 2596630), (10, 2077304), (16, 1298315), (20, 1038652), (40, 519326), (80, 259663), (103, 201680), (206, 100840), (412, 50420), (515, 40336), (824, 25210), (1030, 20168), (1648, 12605), (2060, 10084), (2521, 8240), (4120, 5042)]