1405480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 3243240

約数和(自身を除く): 1837760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 857, 1640, 1714, 3428, 4285, 6856, 8570, 17140, 34280, 35137, 70274, 140548, 175685, 281096, 351370, 702740, 1405480]

約数ペア:

[(1, 1405480), (2, 702740), (4, 351370), (5, 281096), (8, 175685), (10, 140548), (20, 70274), (40, 35137), (41, 34280), (82, 17140), (164, 8570), (205, 6856), (328, 4285), (410, 3428), (820, 1714), (857, 1640)]