4017940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2543}}^1$

素因数の和:2631

約数の個数: 24

約数和(自身を含む): 8547840

約数和(自身を除く): 4529900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 2543, 5086, 10172, 12715, 25430, 50860, 200897, 401794, 803588, 1004485, 2008970, 4017940]

約数ペア:

[(1, 4017940), (2, 2008970), (4, 1004485), (5, 803588), (10, 401794), (20, 200897), (79, 50860), (158, 25430), (316, 12715), (395, 10172), (790, 5086), (1580, 2543)]