22128280

素因数分解:

$2^3\times 5^1\times {\mathrm{553207}}^1$

素因数の和:553218

約数の個数: 16

約数和(自身を含む): 49788720

約数和(自身を除く): 27660440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 553207, 1106414, 2212828, 2766035, 4425656, 5532070, 11064140, 22128280]

約数ペア:

[(1, 22128280), (2, 11064140), (4, 5532070), (5, 4425656), (8, 2766035), (10, 2212828), (20, 1106414), (40, 553207)]