28658356

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1191

約数の個数: 24

約数和(自身を含む): 51408000

約数和(自身を除く): 22749644

約数列:

[1, 2, 4, 79, 89, 158, 178, 316, 356, 1019, 2038, 4076, 7031, 14062, 28124, 80501, 90691, 161002, 181382, 322004, 362764, 7164589, 14329178, 28658356]

約数ペア:

[(1, 28658356), (2, 14329178), (4, 7164589), (79, 362764), (89, 322004), (158, 181382), (178, 161002), (316, 90691), (356, 80501), (1019, 28124), (2038, 14062), (4076, 7031)]