71690660

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{21991}}^1$

素因数の和:22163

約数の個数: 24

約数和(自身を含む): 151480896

約数和(自身を除く): 79790236

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 21991, 43982, 87964, 109955, 219910, 439820, 3584533, 7169066, 14338132, 17922665, 35845330, 71690660]

約数ペア:

[(1, 71690660), (2, 35845330), (4, 17922665), (5, 14338132), (10, 7169066), (20, 3584533), (163, 439820), (326, 219910), (652, 109955), (815, 87964), (1630, 43982), (3260, 21991)]