18662740

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1429}}^1$

素因数の和:2091

約数の個数: 24

約数和(自身を含む): 39279240

約数和(自身を除く): 20616500

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1429, 2612, 2858, 3265, 5716, 6530, 7145, 13060, 14290, 28580, 933137, 1866274, 3732548, 4665685, 9331370, 18662740]

約数ペア:

[(1, 18662740), (2, 9331370), (4, 4665685), (5, 3732548), (10, 1866274), (20, 933137), (653, 28580), (1306, 14290), (1429, 13060), (2612, 7145), (2858, 6530), (3265, 5716)]