25115920

素因数分解:

$2^4\times 5^1\times {\mathrm{313949}}^1$

素因数の和:313962

約数の個数: 20

約数和(自身を含む): 58394700

約数和(自身を除く): 33278780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313949, 627898, 1255796, 1569745, 2511592, 3139490, 5023184, 6278980, 12557960, 25115920]

約数ペア:

[(1, 25115920), (2, 12557960), (4, 6278980), (5, 5023184), (8, 3139490), (10, 2511592), (16, 1569745), (20, 1255796), (40, 627898), (80, 313949)]