1491247580

素因数分解:

$2^2\times 5^1\times {\mathrm{1867}}^1\times {\mathrm{39937}}^1$

素因数の和:41813

約数の個数: 24

約数和(自身を含む): 3133375728

約数和(自身を除く): 1642128148

約数列:

[1, 2, 4, 5, 10, 20, 1867, 3734, 7468, 9335, 18670, 37340, 39937, 79874, 159748, 199685, 399370, 798740, 74562379, 149124758, 298249516, 372811895, 745623790, 1491247580]

約数ペア:

[(1, 1491247580), (2, 745623790), (4, 372811895), (5, 298249516), (10, 149124758), (20, 74562379), (1867, 798740), (3734, 399370), (7468, 199685), (9335, 159748), (18670, 79874), (37340, 39937)]