20780864

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{24977}}^1$

素因数の和:25002

約数の個数: 28

約数和(自身を含む): 44410884

約数和(自身を除く): 23630020

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 24977, 49954, 99908, 199816, 324701, 399632, 649402, 799264, 1298804, 1598528, 2597608, 5195216, 10390432, 20780864]

約数ペア:

[(1, 20780864), (2, 10390432), (4, 5195216), (8, 2597608), (13, 1598528), (16, 1298804), (26, 799264), (32, 649402), (52, 399632), (64, 324701), (104, 199816), (208, 99908), (416, 49954), (832, 24977)]