7215080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2957}}^1$

素因数の和:3029

約数の個数: 32

約数和(自身を含む): 16505640

約数和(自身を除く): 9290560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 2957, 5914, 11828, 14785, 23656, 29570, 59140, 118280, 180377, 360754, 721508, 901885, 1443016, 1803770, 3607540, 7215080]

約数ペア:

[(1, 7215080), (2, 3607540), (4, 1803770), (5, 1443016), (8, 901885), (10, 721508), (20, 360754), (40, 180377), (61, 118280), (122, 59140), (244, 29570), (305, 23656), (488, 14785), (610, 11828), (1220, 5914), (2440, 2957)]