20396454

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26052186

約数列:

[1, 2, 3, 6, 13, 26, 29, 39, 58, 71, 78, 87, 127, 142, 174, 213, 254, 377, 381, 426, 754, 762, 923, 1131, 1651, 1846, 2059, 2262, 2769, 3302, 3683, 4118, 4953, 5538, 6177, 7366, 9017, 9906, 11049, 12354, 18034, 22098, 26767, 27051, 47879, 53534, 54102, 80301, 95758, 117221, 143637, 160602, 234442, 261493, 287274, 351663, 522986, 703326, 784479, 1568958, 3399409, 6798818, 10198227, 20396454]

約数ペア:

[(1, 20396454), (2, 10198227), (3, 6798818), (6, 3399409), (13, 1568958), (26, 784479), (29, 703326), (39, 522986), (58, 351663), (71, 287274), (78, 261493), (87, 234442), (127, 160602), (142, 143637), (174, 117221), (213, 95758), (254, 80301), (377, 54102), (381, 53534), (426, 47879), (754, 27051), (762, 26767), (923, 22098), (1131, 18034), (1651, 12354), (1846, 11049), (2059, 9906), (2262, 9017), (2769, 7366), (3302, 6177), (3683, 5538), (4118, 4953)]