28420912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1277}}^1$

素因数の和:1405

約数の個数: 40

約数和(自身を含む): 59902416

約数和(自身を除く): 31481504

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 1277, 1391, 1712, 2554, 2782, 5108, 5564, 10216, 11128, 16601, 20432, 22256, 33202, 66404, 132808, 136639, 265616, 273278, 546556, 1093112, 1776307, 2186224, 3552614, 7105228, 14210456, 28420912]

約数ペア:

[(1, 28420912), (2, 14210456), (4, 7105228), (8, 3552614), (13, 2186224), (16, 1776307), (26, 1093112), (52, 546556), (104, 273278), (107, 265616), (208, 136639), (214, 132808), (428, 66404), (856, 33202), (1277, 22256), (1391, 20432), (1712, 16601), (2554, 11128), (2782, 10216), (5108, 5564)]