258875180

素因数分解:

$2^2\times 5^1\times {\mathrm{1637}}^1\times {\mathrm{7907}}^1$

素因数の和:9553

約数の個数: 24

約数和(自身を含む): 544038768

約数和(自身を除く): 285163588

約数列:

[1, 2, 4, 5, 10, 20, 1637, 3274, 6548, 7907, 8185, 15814, 16370, 31628, 32740, 39535, 79070, 158140, 12943759, 25887518, 51775036, 64718795, 129437590, 258875180]

約数ペア:

[(1, 258875180), (2, 129437590), (4, 64718795), (5, 51775036), (10, 25887518), (20, 12943759), (1637, 158140), (3274, 79070), (6548, 39535), (7907, 32740), (8185, 31628), (15814, 16370)]