2560440

素因数分解:

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

素因数の和:1156

約数の個数: 64

約数和(自身を含む): 8092800

約数和(自身を除く): 5532360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1123, 1140, 2246, 2280, 3369, 4492, 5615, 6738, 8984, 11230, 13476, 16845, 21337, 22460, 26952, 33690, 42674, 44920, 64011, 67380, 85348, 106685, 128022, 134760, 170696, 213370, 256044, 320055, 426740, 512088, 640110, 853480, 1280220, 2560440]

約数ペア:

[(1, 2560440), (2, 1280220), (3, 853480), (4, 640110), (5, 512088), (6, 426740), (8, 320055), (10, 256044), (12, 213370), (15, 170696), (19, 134760), (20, 128022), (24, 106685), (30, 85348), (38, 67380), (40, 64011), (57, 44920), (60, 42674), (76, 33690), (95, 26952), (114, 22460), (120, 21337), (152, 16845), (190, 13476), (228, 11230), (285, 8984), (380, 6738), (456, 5615), (570, 4492), (760, 3369), (1123, 2280), (1140, 2246)]