20282180

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1553}}^1$

素因数の和:2215

約数の個数: 24

約数和(自身を含む): 42685272

約数和(自身を除く): 22403092

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1553, 2612, 3106, 3265, 6212, 6530, 7765, 13060, 15530, 31060, 1014109, 2028218, 4056436, 5070545, 10141090, 20282180]

約数ペア:

[(1, 20282180), (2, 10141090), (4, 5070545), (5, 4056436), (10, 2028218), (20, 1014109), (653, 31060), (1306, 15530), (1553, 13060), (2612, 7765), (3106, 6530), (3265, 6212)]