1270508080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{223681}}^1$

素因数の和:223765

約数の個数: 40

約数和(自身を含む): 2995549344

約数和(自身を除く): 1725041264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 223681, 447362, 894724, 1118405, 1789448, 2236810, 3578896, 4473620, 8947240, 15881351, 17894480, 31762702, 63525404, 79406755, 127050808, 158813510, 254101616, 317627020, 635254040, 1270508080]

約数ペア:

[(1, 1270508080), (2, 635254040), (4, 317627020), (5, 254101616), (8, 158813510), (10, 127050808), (16, 79406755), (20, 63525404), (40, 31762702), (71, 17894480), (80, 15881351), (142, 8947240), (284, 4473620), (355, 3578896), (568, 2236810), (710, 1789448), (1136, 1118405), (1420, 894724), (2840, 447362), (5680, 223681)]