8723980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10639}}^1$

素因数の和:10689

約数の個数: 24

約数和(自身を含む): 18768960

約数和(自身を除く): 10044980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 10639, 21278, 42556, 53195, 106390, 212780, 436199, 872398, 1744796, 2180995, 4361990, 8723980]

約数ペア:

[(1, 8723980), (2, 4361990), (4, 2180995), (5, 1744796), (10, 872398), (20, 436199), (41, 212780), (82, 106390), (164, 53195), (205, 42556), (410, 21278), (820, 10639)]