12390520

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1009}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 27997200

約数和(自身を除く): 15606680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1009, 1228, 1535, 2018, 2456, 3070, 4036, 5045, 6140, 8072, 10090, 12280, 20180, 40360, 309763, 619526, 1239052, 1548815, 2478104, 3097630, 6195260, 12390520]

約数ペア:

[(1, 12390520), (2, 6195260), (4, 3097630), (5, 2478104), (8, 1548815), (10, 1239052), (20, 619526), (40, 309763), (307, 40360), (614, 20180), (1009, 12280), (1228, 10090), (1535, 8072), (2018, 6140), (2456, 5045), (3070, 4036)]