19896110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4937}}^1$

素因数の和:4988

約数の個数: 32

約数和(自身を含む): 39820032

約数和(自身を除く): 19923922

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 4937, 9874, 24685, 49370, 64181, 128362, 153047, 306094, 320905, 641810, 765235, 1530470, 1989611, 3979222, 9948055, 19896110]

約数ペア:

[(1, 19896110), (2, 9948055), (5, 3979222), (10, 1989611), (13, 1530470), (26, 765235), (31, 641810), (62, 320905), (65, 306094), (130, 153047), (155, 128362), (310, 64181), (403, 49370), (806, 24685), (2015, 9874), (4030, 4937)]