28877810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{222137}}^1$

素因数の和:222157

約数の個数: 16

約数和(自身を含む): 55978776

約数和(自身を除く): 27100966

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 222137, 444274, 1110685, 2221370, 2887781, 5775562, 14438905, 28877810]

約数ペア:

[(1, 28877810), (2, 14438905), (5, 5775562), (10, 2887781), (13, 2221370), (26, 1110685), (65, 444274), (130, 222137)]