81365230

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{4391}}^1$

素因数の和:4524

約数の個数: 32

約数和(自身を含む): 156530880

約数和(自身を除く): 75165650

約数列:

[1, 2, 5, 10, 17, 34, 85, 109, 170, 218, 545, 1090, 1853, 3706, 4391, 8782, 9265, 18530, 21955, 43910, 74647, 149294, 373235, 478619, 746470, 957238, 2393095, 4786190, 8136523, 16273046, 40682615, 81365230]

約数ペア:

[(1, 81365230), (2, 40682615), (5, 16273046), (10, 8136523), (17, 4786190), (34, 2393095), (85, 957238), (109, 746470), (170, 478619), (218, 373235), (545, 149294), (1090, 74647), (1853, 43910), (3706, 21955), (4391, 18530), (8782, 9265)]