9118180

素因数分解:

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

素因数の和:316

約数の個数: 48

約数和(自身を含む): 20160000

約数和(自身を除く): 11041820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 199, 290, 316, 395, 398, 580, 790, 796, 995, 1580, 1990, 2291, 3980, 4582, 5771, 9164, 11455, 11542, 15721, 22910, 23084, 28855, 31442, 45820, 57710, 62884, 78605, 115420, 157210, 314420, 455909, 911818, 1823636, 2279545, 4559090, 9118180]

約数ペア:

[(1, 9118180), (2, 4559090), (4, 2279545), (5, 1823636), (10, 911818), (20, 455909), (29, 314420), (58, 157210), (79, 115420), (116, 78605), (145, 62884), (158, 57710), (199, 45820), (290, 31442), (316, 28855), (395, 23084), (398, 22910), (580, 15721), (790, 11542), (796, 11455), (995, 9164), (1580, 5771), (1990, 4582), (2291, 3980)]