80420956

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{3391}}^1$

素因数の和:3431

約数の個数: 54

約数和(自身を含む): 180003264

約数和(自身を除く): 99582308

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 121, 154, 196, 242, 308, 484, 539, 847, 1078, 1694, 2156, 3388, 3391, 5929, 6782, 11858, 13564, 23716, 23737, 37301, 47474, 74602, 94948, 149204, 166159, 261107, 332318, 410311, 522214, 664636, 820622, 1044428, 1641244, 1827749, 2872177, 3655498, 5744354, 7310996, 11488708, 20105239, 40210478, 80420956]

約数ペア:

[(1, 80420956), (2, 40210478), (4, 20105239), (7, 11488708), (11, 7310996), (14, 5744354), (22, 3655498), (28, 2872177), (44, 1827749), (49, 1641244), (77, 1044428), (98, 820622), (121, 664636), (154, 522214), (196, 410311), (242, 332318), (308, 261107), (484, 166159), (539, 149204), (847, 94948), (1078, 74602), (1694, 47474), (2156, 37301), (3388, 23737), (3391, 23716), (5929, 13564), (6782, 11858)]