1294000

素因数分解:

$2^4\times 5^3\times {\mathrm{647}}^1$

素因数の和:670

約数の個数: 40

約数和(自身を含む): 3133728

約数和(自身を除く): 1839728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 647, 1000, 1294, 2000, 2588, 3235, 5176, 6470, 10352, 12940, 16175, 25880, 32350, 51760, 64700, 80875, 129400, 161750, 258800, 323500, 647000, 1294000]

約数ペア:

[(1, 1294000), (2, 647000), (4, 323500), (5, 258800), (8, 161750), (10, 129400), (16, 80875), (20, 64700), (25, 51760), (40, 32350), (50, 25880), (80, 16175), (100, 12940), (125, 10352), (200, 6470), (250, 5176), (400, 3235), (500, 2588), (647, 2000), (1000, 1294)]