5681420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4001}}^1$

素因数の和:4081

約数の個数: 24

約数和(自身を含む): 12102048

約数和(自身を除く): 6420628

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 4001, 8002, 16004, 20005, 40010, 80020, 284071, 568142, 1136284, 1420355, 2840710, 5681420]

約数ペア:

[(1, 5681420), (2, 2840710), (4, 1420355), (5, 1136284), (10, 568142), (20, 284071), (71, 80020), (142, 40010), (284, 20005), (355, 16004), (710, 8002), (1420, 4001)]