25137680

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1579}}^1$

素因数の和:1791

約数の個数: 40

約数和(自身を含む): 58776000

約数和(自身を除く): 33638320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1579, 1592, 1990, 3158, 3184, 3980, 6316, 7895, 7960, 12632, 15790, 15920, 25264, 31580, 63160, 126320, 314221, 628442, 1256884, 1571105, 2513768, 3142210, 5027536, 6284420, 12568840, 25137680]

約数ペア:

[(1, 25137680), (2, 12568840), (4, 6284420), (5, 5027536), (8, 3142210), (10, 2513768), (16, 1571105), (20, 1256884), (40, 628442), (80, 314221), (199, 126320), (398, 63160), (796, 31580), (995, 25264), (1579, 15920), (1592, 15790), (1990, 12632), (3158, 7960), (3184, 7895), (3980, 6316)]