66489260

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23917}}^1$

素因数の和:24065

約数の個数: 24

約数和(自身を含む): 140637840

約数和(自身を除く): 74148580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 23917, 47834, 95668, 119585, 239170, 478340, 3324463, 6648926, 13297852, 16622315, 33244630, 66489260]

約数ペア:

[(1, 66489260), (2, 33244630), (4, 16622315), (5, 13297852), (10, 6648926), (20, 3324463), (139, 478340), (278, 239170), (556, 119585), (695, 95668), (1390, 47834), (2780, 23917)]