28139530

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{68633}}^1$

素因数の和:68681

約数の個数: 16

約数和(自身を含む): 51887304

約数和(自身を除く): 23747774

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 68633, 137266, 343165, 686330, 2813953, 5627906, 14069765, 28139530]

約数ペア:

[(1, 28139530), (2, 14069765), (5, 5627906), (10, 2813953), (41, 686330), (82, 343165), (205, 137266), (410, 68633)]