20145554420

素因数分解:

$2^2\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{976991}}^1$

素因数の和:978031

約数の個数: 24

約数和(自身を含む): 42346741248

約数和(自身を除く): 22201186828

約数列:

[1, 2, 4, 5, 10, 20, 1031, 2062, 4124, 5155, 10310, 20620, 976991, 1953982, 3907964, 4884955, 9769910, 19539820, 1007277721, 2014555442, 4029110884, 5036388605, 10072777210, 20145554420]

約数ペア:

[(1, 20145554420), (2, 10072777210), (4, 5036388605), (5, 4029110884), (10, 2014555442), (20, 1007277721), (1031, 19539820), (2062, 9769910), (4124, 4884955), (5155, 3907964), (10310, 1953982), (20620, 976991)]