20876559620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{285121}}^1$

素因数の和:285660

約数の個数: 48

約数和(自身を含む): 50199719808

約数和(自身を除く): 29323160188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 523, 1046, 2092, 2615, 3661, 5230, 7322, 10460, 14644, 18305, 36610, 73220, 285121, 570242, 1140484, 1425605, 1995847, 2851210, 3991694, 5702420, 7983388, 9979235, 19958470, 39916940, 149118283, 298236566, 596473132, 745591415, 1043827981, 1491182830, 2087655962, 2982365660, 4175311924, 5219139905, 10438279810, 20876559620]

約数ペア:

[(1, 20876559620), (2, 10438279810), (4, 5219139905), (5, 4175311924), (7, 2982365660), (10, 2087655962), (14, 1491182830), (20, 1043827981), (28, 745591415), (35, 596473132), (70, 298236566), (140, 149118283), (523, 39916940), (1046, 19958470), (2092, 9979235), (2615, 7983388), (3661, 5702420), (5230, 3991694), (7322, 2851210), (10460, 1995847), (14644, 1425605), (18305, 1140484), (36610, 570242), (73220, 285121)]