390010990

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{111751}}^1$

素因数の和:112107

約数の個数: 16

約数和(自身を含む): 704037600

約数和(自身を除く): 314026610

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 111751, 223502, 558755, 1117510, 39001099, 78002198, 195005495, 390010990]

約数ペア:

[(1, 390010990), (2, 195005495), (5, 78002198), (10, 39001099), (349, 1117510), (698, 558755), (1745, 223502), (3490, 111751)]