20325380

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10477}}^1$

素因数の和:10583

約数の個数: 24

約数和(自身を含む): 43127448

約数和(自身を除く): 22802068

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10477, 20954, 41908, 52385, 104770, 209540, 1016269, 2032538, 4065076, 5081345, 10162690, 20325380]

約数ペア:

[(1, 20325380), (2, 10162690), (4, 5081345), (5, 4065076), (10, 2032538), (20, 1016269), (97, 209540), (194, 104770), (388, 52385), (485, 41908), (970, 20954), (1940, 10477)]