987940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1051}}^1$

素因数の和:1107

約数の個数: 24

約数和(自身を含む): 2120832

約数和(自身を除く): 1132892

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 1051, 2102, 4204, 5255, 10510, 21020, 49397, 98794, 197588, 246985, 493970, 987940]

約数ペア:

[(1, 987940), (2, 493970), (4, 246985), (5, 197588), (10, 98794), (20, 49397), (47, 21020), (94, 10510), (188, 5255), (235, 4204), (470, 2102), (940, 1051)]