19696780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31769}}^1$

素因数の和:31809

約数の個数: 24

約数和(自身を含む): 42698880

約数和(自身を除く): 23002100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 31769, 63538, 127076, 158845, 317690, 635380, 984839, 1969678, 3939356, 4924195, 9848390, 19696780]

約数ペア:

[(1, 19696780), (2, 9848390), (4, 4924195), (5, 3939356), (10, 1969678), (20, 984839), (31, 635380), (62, 317690), (124, 158845), (155, 127076), (310, 63538), (620, 31769)]