20551310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1399}}^1$

素因数の和:1532

約数の個数: 32

約数和(自身を含む): 40219200

約数和(自身を除く): 19667890

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1399, 1469, 2798, 2938, 6995, 7345, 13990, 14690, 18187, 36374, 90935, 158087, 181870, 316174, 790435, 1580870, 2055131, 4110262, 10275655, 20551310]

約数ペア:

[(1, 20551310), (2, 10275655), (5, 4110262), (10, 2055131), (13, 1580870), (26, 790435), (65, 316174), (113, 181870), (130, 158087), (226, 90935), (565, 36374), (1130, 18187), (1399, 14690), (1469, 13990), (2798, 7345), (2938, 6995)]