438609820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1993681}}^1$

素因数の和:1993701

約数の個数: 24

約数和(自身を含む): 1004815728

約数和(自身を除く): 566205908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1993681, 3987362, 7974724, 9968405, 19936810, 21930491, 39873620, 43860982, 87721964, 109652455, 219304910, 438609820]

約数ペア:

[(1, 438609820), (2, 219304910), (4, 109652455), (5, 87721964), (10, 43860982), (11, 39873620), (20, 21930491), (22, 19936810), (44, 9968405), (55, 7974724), (110, 3987362), (220, 1993681)]