20440180

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4583}}^1$

素因数の和:4815

約数の個数: 24

約数和(自身を含む): 43126272

約数和(自身を除く): 22686092

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 4583, 9166, 18332, 22915, 45830, 91660, 1022009, 2044018, 4088036, 5110045, 10220090, 20440180]

約数ペア:

[(1, 20440180), (2, 10220090), (4, 5110045), (5, 4088036), (10, 2044018), (20, 1022009), (223, 91660), (446, 45830), (892, 22915), (1115, 18332), (2230, 9166), (4460, 4583)]