9987980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21713}}^1$

素因数の和:21745

約数の個数: 24

約数和(自身を含む): 21887712

約数和(自身を除く): 11899732

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 21713, 43426, 86852, 108565, 217130, 434260, 499399, 998798, 1997596, 2496995, 4993990, 9987980]

約数ペア:

[(1, 9987980), (2, 4993990), (4, 2496995), (5, 1997596), (10, 998798), (20, 499399), (23, 434260), (46, 217130), (92, 108565), (115, 86852), (230, 43426), (460, 21713)]