31301090

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{19937}}^1$

素因数の和:20101

約数の個数: 16

約数和(自身を含む): 56703672

約数和(自身を除く): 25402582

約数列:

[1, 2, 5, 10, 157, 314, 785, 1570, 19937, 39874, 99685, 199370, 3130109, 6260218, 15650545, 31301090]

約数ペア:

[(1, 31301090), (2, 15650545), (5, 6260218), (10, 3130109), (157, 199370), (314, 99685), (785, 39874), (1570, 19937)]