16791620

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4219}}^1$

素因数の和:4427

約数の個数: 24

約数和(自身を含む): 35448000

約数和(自身を除く): 18656380

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4219, 8438, 16876, 21095, 42190, 84380, 839581, 1679162, 3358324, 4197905, 8395810, 16791620]

約数ペア:

[(1, 16791620), (2, 8395810), (4, 4197905), (5, 3358324), (10, 1679162), (20, 839581), (199, 84380), (398, 42190), (796, 21095), (995, 16876), (1990, 8438), (3980, 4219)]