18236360

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 24963640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 79, 116, 145, 158, 199, 232, 290, 316, 395, 398, 580, 632, 790, 796, 995, 1160, 1580, 1592, 1990, 2291, 3160, 3980, 4582, 5771, 7960, 9164, 11455, 11542, 15721, 18328, 22910, 23084, 28855, 31442, 45820, 46168, 57710, 62884, 78605, 91640, 115420, 125768, 157210, 230840, 314420, 455909, 628840, 911818, 1823636, 2279545, 3647272, 4559090, 9118180, 18236360]

約数ペア:

[(1, 18236360), (2, 9118180), (4, 4559090), (5, 3647272), (8, 2279545), (10, 1823636), (20, 911818), (29, 628840), (40, 455909), (58, 314420), (79, 230840), (116, 157210), (145, 125768), (158, 115420), (199, 91640), (232, 78605), (290, 62884), (316, 57710), (395, 46168), (398, 45820), (580, 31442), (632, 28855), (790, 23084), (796, 22910), (995, 18328), (1160, 15721), (1580, 11542), (1592, 11455), (1990, 9164), (2291, 7960), (3160, 5771), (3980, 4582)]