1280220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1123}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 3776640

約数和(自身を除く): 2496420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1123, 1140, 2246, 3369, 4492, 5615, 6738, 11230, 13476, 16845, 21337, 22460, 33690, 42674, 64011, 67380, 85348, 106685, 128022, 213370, 256044, 320055, 426740, 640110, 1280220]

約数ペア:

[(1, 1280220), (2, 640110), (3, 426740), (4, 320055), (5, 256044), (6, 213370), (10, 128022), (12, 106685), (15, 85348), (19, 67380), (20, 64011), (30, 42674), (38, 33690), (57, 22460), (60, 21337), (76, 16845), (95, 13476), (114, 11230), (190, 6738), (228, 5615), (285, 4492), (380, 3369), (570, 2246), (1123, 1140)]