9869980

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2213}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 20829312

約数和(自身を除く): 10959332

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2213, 2230, 4426, 4460, 8852, 11065, 22130, 44260, 493499, 986998, 1973996, 2467495, 4934990, 9869980]

約数ペア:

[(1, 9869980), (2, 4934990), (4, 2467495), (5, 1973996), (10, 986998), (20, 493499), (223, 44260), (446, 22130), (892, 11065), (1115, 8852), (2213, 4460), (2230, 4426)]