20512007180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1450637}}^1$

素因数の和:1450754

約数の個数: 48

約数和(自身を含む): 49716265536

約数和(自身を除く): 29204258356

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 14140, 1450637, 2901274, 5802548, 7253185, 10154459, 14506370, 20308918, 29012740, 40617836, 50772295, 101544590, 146514337, 203089180, 293028674, 586057348, 732571685, 1025600359, 1465143370, 2051200718, 2930286740, 4102401436, 5128001795, 10256003590, 20512007180]

約数ペア:

[(1, 20512007180), (2, 10256003590), (4, 5128001795), (5, 4102401436), (7, 2930286740), (10, 2051200718), (14, 1465143370), (20, 1025600359), (28, 732571685), (35, 586057348), (70, 293028674), (101, 203089180), (140, 146514337), (202, 101544590), (404, 50772295), (505, 40617836), (707, 29012740), (1010, 20308918), (1414, 14506370), (2020, 10154459), (2828, 7253185), (3535, 5802548), (7070, 2901274), (14140, 1450637)]