20161519100

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1450469}}^1$

素因数の和:1450622

約数の個数: 36

約数和(自身を含む): 44065278600

約数和(自身を除く): 23903759500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2780, 3475, 6950, 13900, 1450469, 2900938, 5801876, 7252345, 14504690, 29009380, 36261725, 72523450, 145046900, 201615191, 403230382, 806460764, 1008075955, 2016151910, 4032303820, 5040379775, 10080759550, 20161519100]

約数ペア:

[(1, 20161519100), (2, 10080759550), (4, 5040379775), (5, 4032303820), (10, 2016151910), (20, 1008075955), (25, 806460764), (50, 403230382), (100, 201615191), (139, 145046900), (278, 72523450), (556, 36261725), (695, 29009380), (1390, 14504690), (2780, 7252345), (3475, 5801876), (6950, 2900938), (13900, 1450469)]