1320802375

素因数分解:

$5^3\times {\mathrm{643}}^1\times {\mathrm{16433}}^1$

素因数の和:17091

約数の個数: 16

約数和(自身を含む): 1651025376

約数和(自身を除く): 330223001

約数列:

[1, 5, 25, 125, 643, 3215, 16075, 16433, 80375, 82165, 410825, 2054125, 10566419, 52832095, 264160475, 1320802375]

約数ペア:

[(1, 1320802375), (5, 264160475), (25, 52832095), (125, 10566419), (643, 2054125), (3215, 410825), (16075, 82165), (16433, 80375)]