31790780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2341}}^1$

素因数の和:2454

約数の個数: 48

約数和(自身を含む): 77117376

約数和(自身を除く): 45326596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 97, 140, 194, 388, 485, 679, 970, 1358, 1940, 2341, 2716, 3395, 4682, 6790, 9364, 11705, 13580, 16387, 23410, 32774, 46820, 65548, 81935, 163870, 227077, 327740, 454154, 908308, 1135385, 1589539, 2270770, 3179078, 4541540, 6358156, 7947695, 15895390, 31790780]

約数ペア:

[(1, 31790780), (2, 15895390), (4, 7947695), (5, 6358156), (7, 4541540), (10, 3179078), (14, 2270770), (20, 1589539), (28, 1135385), (35, 908308), (70, 454154), (97, 327740), (140, 227077), (194, 163870), (388, 81935), (485, 65548), (679, 46820), (970, 32774), (1358, 23410), (1940, 16387), (2341, 13580), (2716, 11705), (3395, 9364), (4682, 6790)]