20315260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145109}}^1$

素因数の和:145125

約数の個数: 24

約数和(自身を含む): 48756960

約数和(自身を除く): 28441700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145109, 290218, 580436, 725545, 1015763, 1451090, 2031526, 2902180, 4063052, 5078815, 10157630, 20315260]

約数ペア:

[(1, 20315260), (2, 10157630), (4, 5078815), (5, 4063052), (7, 2902180), (10, 2031526), (14, 1451090), (20, 1015763), (28, 725545), (35, 580436), (70, 290218), (140, 145109)]