12790700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9839}}^1$

素因数の和:9866

約数の個数: 36

約数和(自身を含む): 29893920

約数和(自身を除く): 17103220

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 9839, 19678, 39356, 49195, 98390, 127907, 196780, 245975, 255814, 491950, 511628, 639535, 983900, 1279070, 2558140, 3197675, 6395350, 12790700]

約数ペア:

[(1, 12790700), (2, 6395350), (4, 3197675), (5, 2558140), (10, 1279070), (13, 983900), (20, 639535), (25, 511628), (26, 491950), (50, 255814), (52, 245975), (65, 196780), (100, 127907), (130, 98390), (260, 49195), (325, 39356), (650, 19678), (1300, 9839)]