20682340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1523}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 50182272

約数和(自身を除く): 29499932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1523, 1940, 2716, 3046, 3395, 6092, 6790, 7615, 10661, 13580, 15230, 21322, 30460, 42644, 53305, 106610, 147731, 213220, 295462, 590924, 738655, 1034117, 1477310, 2068234, 2954620, 4136468, 5170585, 10341170, 20682340]

約数ペア:

[(1, 20682340), (2, 10341170), (4, 5170585), (5, 4136468), (7, 2954620), (10, 2068234), (14, 1477310), (20, 1034117), (28, 738655), (35, 590924), (70, 295462), (97, 213220), (140, 147731), (194, 106610), (388, 53305), (485, 42644), (679, 30460), (970, 21322), (1358, 15230), (1523, 13580), (1940, 10661), (2716, 7615), (3046, 6790), (3395, 6092)]