13871240

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{641}}^1$

素因数の和:1193

約数の個数: 32

約数和(自身を含む): 31316760

約数和(自身を除く): 17445520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 641, 1082, 1282, 2164, 2564, 2705, 3205, 4328, 5128, 5410, 6410, 10820, 12820, 21640, 25640, 346781, 693562, 1387124, 1733905, 2774248, 3467810, 6935620, 13871240]

約数ペア:

[(1, 13871240), (2, 6935620), (4, 3467810), (5, 2774248), (8, 1733905), (10, 1387124), (20, 693562), (40, 346781), (541, 25640), (641, 21640), (1082, 12820), (1282, 10820), (2164, 6410), (2564, 5410), (2705, 5128), (3205, 4328)]