20399248

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10039}}^1$

素因数の和:10174

約数の個数: 20

約数和(自身を含む): 39838720

約数和(自身を除く): 19439472

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10039, 20078, 40156, 80312, 160624, 1274953, 2549906, 5099812, 10199624, 20399248]

約数ペア:

[(1, 20399248), (2, 10199624), (4, 5099812), (8, 2549906), (16, 1274953), (127, 160624), (254, 80312), (508, 40156), (1016, 20078), (2032, 10039)]