20180451820

素因数分解:

$2^2\times 5^1\times {\mathrm{6257}}^1\times {\mathrm{161263}}^1$

素因数の和:167529

約数の個数: 24

約数和(自身を含む): 42385984704

約数和(自身を除く): 22205532884

約数列:

[1, 2, 4, 5, 10, 20, 6257, 12514, 25028, 31285, 62570, 125140, 161263, 322526, 645052, 806315, 1612630, 3225260, 1009022591, 2018045182, 4036090364, 5045112955, 10090225910, 20180451820]

約数ペア:

[(1, 20180451820), (2, 10090225910), (4, 5045112955), (5, 4036090364), (10, 2018045182), (20, 1009022591), (6257, 3225260), (12514, 1612630), (25028, 806315), (31285, 645052), (62570, 322526), (125140, 161263)]