20602040

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2441}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 46593360

約数和(自身を除く): 25991320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2441, 4220, 4882, 8440, 9764, 12205, 19528, 24410, 48820, 97640, 515051, 1030102, 2060204, 2575255, 4120408, 5150510, 10301020, 20602040]

約数ペア:

[(1, 20602040), (2, 10301020), (4, 5150510), (5, 4120408), (8, 2575255), (10, 2060204), (20, 1030102), (40, 515051), (211, 97640), (422, 48820), (844, 24410), (1055, 19528), (1688, 12205), (2110, 9764), (2441, 8440), (4220, 4882)]