12568840

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1579}}^1$

素因数の和:1789

約数の個数: 32

約数和(自身を含む): 28440000

約数和(自身を除く): 15871160

約数列:

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

約数ペア:

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