22251440

素因数分解:

$2^4\times 5^1\times {\mathrm{278143}}^1$

素因数の和:278156

約数の個数: 20

約数和(自身を含む): 51734784

約数和(自身を除く): 29483344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 278143, 556286, 1112572, 1390715, 2225144, 2781430, 4450288, 5562860, 11125720, 22251440]

約数ペア:

[(1, 22251440), (2, 11125720), (4, 5562860), (5, 4450288), (8, 2781430), (10, 2225144), (16, 1390715), (20, 1112572), (40, 556286), (80, 278143)]