20542730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5449}}^1$

素因数の和:5498

約数の個数: 32

約数和(自身を含む): 41202000

約数和(自身を除く): 20659270

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5449, 10898, 27245, 54490, 70837, 141674, 158021, 316042, 354185, 708370, 790105, 1580210, 2054273, 4108546, 10271365, 20542730]

約数ペア:

[(1, 20542730), (2, 10271365), (5, 4108546), (10, 2054273), (13, 1580210), (26, 790105), (29, 708370), (58, 354185), (65, 316042), (130, 158021), (145, 141674), (290, 70837), (377, 54490), (754, 27245), (1885, 10898), (3770, 5449)]