20859180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1747}}^1$

素因数の和:1958

約数の個数: 48

約数和(自身を含む): 58732800

約数和(自身を除く): 37873620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1194, 1747, 1990, 2388, 2985, 3494, 3980, 5241, 5970, 6988, 8735, 10482, 11940, 17470, 20964, 26205, 34940, 52410, 104820, 347653, 695306, 1042959, 1390612, 1738265, 2085918, 3476530, 4171836, 5214795, 6953060, 10429590, 20859180]

約数ペア:

[(1, 20859180), (2, 10429590), (3, 6953060), (4, 5214795), (5, 4171836), (6, 3476530), (10, 2085918), (12, 1738265), (15, 1390612), (20, 1042959), (30, 695306), (60, 347653), (199, 104820), (398, 52410), (597, 34940), (796, 26205), (995, 20964), (1194, 17470), (1747, 11940), (1990, 10482), (2388, 8735), (2985, 6988), (3494, 5970), (3980, 5241)]