2657680

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 6249600

約数和(自身を除く): 3591920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 239, 278, 478, 556, 695, 956, 1112, 1195, 1390, 1912, 2224, 2390, 2780, 3824, 4780, 5560, 9560, 11120, 19120, 33221, 66442, 132884, 166105, 265768, 332210, 531536, 664420, 1328840, 2657680]

約数ペア:

[(1, 2657680), (2, 1328840), (4, 664420), (5, 531536), (8, 332210), (10, 265768), (16, 166105), (20, 132884), (40, 66442), (80, 33221), (139, 19120), (239, 11120), (278, 9560), (478, 5560), (556, 4780), (695, 3824), (956, 2780), (1112, 2390), (1195, 2224), (1390, 1912)]