2222480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2137}}^1$

素因数の和:2163

約数の個数: 40

約数和(自身を含む): 5567352

約数和(自身を除く): 3344872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2137, 4274, 8548, 10685, 17096, 21370, 27781, 34192, 42740, 55562, 85480, 111124, 138905, 170960, 222248, 277810, 444496, 555620, 1111240, 2222480]

約数ペア:

[(1, 2222480), (2, 1111240), (4, 555620), (5, 444496), (8, 277810), (10, 222248), (13, 170960), (16, 138905), (20, 111124), (26, 85480), (40, 55562), (52, 42740), (65, 34192), (80, 27781), (104, 21370), (130, 17096), (208, 10685), (260, 8548), (520, 4274), (1040, 2137)]