19251260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:906

約数の個数: 48

約数和(自身を含む): 46502400

約数和(自身を除く): 27251140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 691, 796, 995, 1382, 1393, 1990, 2764, 2786, 3455, 3980, 4837, 5572, 6910, 6965, 9674, 13820, 13930, 19348, 24185, 27860, 48370, 96740, 137509, 275018, 550036, 687545, 962563, 1375090, 1925126, 2750180, 3850252, 4812815, 9625630, 19251260]

約数ペア:

[(1, 19251260), (2, 9625630), (4, 4812815), (5, 3850252), (7, 2750180), (10, 1925126), (14, 1375090), (20, 962563), (28, 687545), (35, 550036), (70, 275018), (140, 137509), (199, 96740), (398, 48370), (691, 27860), (796, 24185), (995, 19348), (1382, 13930), (1393, 13820), (1990, 9674), (2764, 6965), (2786, 6910), (3455, 5572), (3980, 4837)]