201778040

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{25349}}^1$

素因数の和:25559

約数の個数: 32

約数和(自身を含む): 456300000

約数和(自身を除く): 254521960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 25349, 50698, 101396, 126745, 202792, 253490, 506980, 1013960, 5044451, 10088902, 20177804, 25222255, 40355608, 50444510, 100889020, 201778040]

約数ペア:

[(1, 201778040), (2, 100889020), (4, 50444510), (5, 40355608), (8, 25222255), (10, 20177804), (20, 10088902), (40, 5044451), (199, 1013960), (398, 506980), (796, 253490), (995, 202792), (1592, 126745), (1990, 101396), (3980, 50698), (7960, 25349)]