19888995890

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10095937}}^1$

素因数の和:10096141

約数の個数: 16

約数和(自身を含む): 35981923032

約数和(自身を除く): 16092927142

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 10095937, 20191874, 50479685, 100959370, 1988899589, 3977799178, 9944497945, 19888995890]

約数ペア:

[(1, 19888995890), (2, 9944497945), (5, 3977799178), (10, 1988899589), (197, 100959370), (394, 50479685), (985, 20191874), (1970, 10095937)]