20638420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{93811}}^1$

素因数の和:93831

約数の個数: 24

約数和(自身を含む): 47281248

約数和(自身を除く): 26642828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 93811, 187622, 375244, 469055, 938110, 1031921, 1876220, 2063842, 4127684, 5159605, 10319210, 20638420]

約数ペア:

[(1, 20638420), (2, 10319210), (4, 5159605), (5, 4127684), (10, 2063842), (11, 1876220), (20, 1031921), (22, 938110), (44, 469055), (55, 375244), (110, 187622), (220, 93811)]