12707480

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1949}}^1$

素因数の和:2123

約数の個数: 32

約数和(自身を含む): 28782000

約数和(自身を除く): 16074520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 1949, 3260, 3898, 6520, 7796, 9745, 15592, 19490, 38980, 77960, 317687, 635374, 1270748, 1588435, 2541496, 3176870, 6353740, 12707480]

約数ペア:

[(1, 12707480), (2, 6353740), (4, 3176870), (5, 2541496), (8, 1588435), (10, 1270748), (20, 635374), (40, 317687), (163, 77960), (326, 38980), (652, 19490), (815, 15592), (1304, 9745), (1630, 7796), (1949, 6520), (3260, 3898)]