86890190

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{20639}}^1$

素因数の和:21067

約数の個数: 16

約数和(自身を含む): 156781440

約数和(自身を除く): 69891250

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 20639, 41278, 103195, 206390, 8689019, 17378038, 43445095, 86890190]

約数ペア:

[(1, 86890190), (2, 43445095), (5, 17378038), (10, 8689019), (421, 206390), (842, 103195), (2105, 41278), (4210, 20639)]