245996890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{276401}}^1$

素因数の和:276497

約数の個数: 16

約数和(自身を含む): 447771240

約数和(自身を除く): 201774350

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 276401, 552802, 1382005, 2764010, 24599689, 49199378, 122998445, 245996890]

約数ペア:

[(1, 245996890), (2, 122998445), (5, 49199378), (10, 24599689), (89, 2764010), (178, 1382005), (445, 552802), (890, 276401)]