20700980

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2731}}^1$

素因数の和:3119

約数の個数: 24

約数和(自身を含む): 43602720

約数和(自身を除く): 22901740

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2731, 3790, 5462, 7580, 10924, 13655, 27310, 54620, 1035049, 2070098, 4140196, 5175245, 10350490, 20700980]

約数ペア:

[(1, 20700980), (2, 10350490), (4, 5175245), (5, 4140196), (10, 2070098), (20, 1035049), (379, 54620), (758, 27310), (1516, 13655), (1895, 10924), (2731, 7580), (3790, 5462)]