12791440

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1259}}^1$

素因数の和:1399

約数の個数: 40

約数和(自身を含む): 29998080

約数和(自身を除く): 17206640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1259, 1270, 2032, 2518, 2540, 5036, 5080, 6295, 10072, 10160, 12590, 20144, 25180, 50360, 100720, 159893, 319786, 639572, 799465, 1279144, 1598930, 2558288, 3197860, 6395720, 12791440]

約数ペア:

[(1, 12791440), (2, 6395720), (4, 3197860), (5, 2558288), (8, 1598930), (10, 1279144), (16, 799465), (20, 639572), (40, 319786), (80, 159893), (127, 100720), (254, 50360), (508, 25180), (635, 20144), (1016, 12590), (1259, 10160), (1270, 10072), (2032, 6295), (2518, 5080), (2540, 5036)]