12967480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7907}}^1$

素因数の和:7959

約数の個数: 32

約数和(自身を含む): 29892240

約数和(自身を除く): 16924760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7907, 15814, 31628, 39535, 63256, 79070, 158140, 316280, 324187, 648374, 1296748, 1620935, 2593496, 3241870, 6483740, 12967480]

約数ペア:

[(1, 12967480), (2, 6483740), (4, 3241870), (5, 2593496), (8, 1620935), (10, 1296748), (20, 648374), (40, 324187), (41, 316280), (82, 158140), (164, 79070), (205, 63256), (328, 39535), (410, 31628), (820, 15814), (1640, 7907)]