12458420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47917}}^1$

素因数の和:47939

約数の個数: 24

約数和(自身を含む): 28175784

約数和(自身を除く): 15717364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 47917, 95834, 191668, 239585, 479170, 622921, 958340, 1245842, 2491684, 3114605, 6229210, 12458420]

約数ペア:

[(1, 12458420), (2, 6229210), (4, 3114605), (5, 2491684), (10, 1245842), (13, 958340), (20, 622921), (26, 479170), (52, 239585), (65, 191668), (130, 95834), (260, 47917)]