20165020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{743}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 24832100

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 59, 92, 115, 118, 230, 236, 295, 460, 590, 743, 1180, 1357, 1486, 2714, 2972, 3715, 5428, 6785, 7430, 13570, 14860, 17089, 27140, 34178, 43837, 68356, 85445, 87674, 170890, 175348, 219185, 341780, 438370, 876740, 1008251, 2016502, 4033004, 5041255, 10082510, 20165020]

約数ペア:

[(1, 20165020), (2, 10082510), (4, 5041255), (5, 4033004), (10, 2016502), (20, 1008251), (23, 876740), (46, 438370), (59, 341780), (92, 219185), (115, 175348), (118, 170890), (230, 87674), (236, 85445), (295, 68356), (460, 43837), (590, 34178), (743, 27140), (1180, 17089), (1357, 14860), (1486, 13570), (2714, 7430), (2972, 6785), (3715, 5428)]