201940660

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1\times {\mathrm{509}}^1$

素因数の和:840

約数の個数: 48

約数和(自身を含む): 431827200

約数和(自身を除く): 229886540

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 239, 332, 415, 478, 509, 830, 956, 1018, 1195, 1660, 2036, 2390, 2545, 4780, 5090, 10180, 19837, 39674, 42247, 79348, 84494, 99185, 121651, 168988, 198370, 211235, 243302, 396740, 422470, 486604, 608255, 844940, 1216510, 2433020, 10097033, 20194066, 40388132, 50485165, 100970330, 201940660]

約数ペア:

[(1, 201940660), (2, 100970330), (4, 50485165), (5, 40388132), (10, 20194066), (20, 10097033), (83, 2433020), (166, 1216510), (239, 844940), (332, 608255), (415, 486604), (478, 422470), (509, 396740), (830, 243302), (956, 211235), (1018, 198370), (1195, 168988), (1660, 121651), (2036, 99185), (2390, 84494), (2545, 79348), (4780, 42247), (5090, 39674), (10180, 19837)]