22540520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{5471}}^1$

素因数の和:5585

約数の個数: 32

約数和(自身を含む): 51217920

約数和(自身を除く): 28677400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 5471, 10942, 21884, 27355, 43768, 54710, 109420, 218840, 563513, 1127026, 2254052, 2817565, 4508104, 5635130, 11270260, 22540520]

約数ペア:

[(1, 22540520), (2, 11270260), (4, 5635130), (5, 4508104), (8, 2817565), (10, 2254052), (20, 1127026), (40, 563513), (103, 218840), (206, 109420), (412, 54710), (515, 43768), (824, 27355), (1030, 21884), (2060, 10942), (4120, 5471)]