2881520

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 40

約数和(自身を含む): 6770400

約数和(自身を除く): 3888880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 199, 362, 398, 724, 796, 905, 995, 1448, 1592, 1810, 1990, 2896, 3184, 3620, 3980, 7240, 7960, 14480, 15920, 36019, 72038, 144076, 180095, 288152, 360190, 576304, 720380, 1440760, 2881520]

約数ペア:

[(1, 2881520), (2, 1440760), (4, 720380), (5, 576304), (8, 360190), (10, 288152), (16, 180095), (20, 144076), (40, 72038), (80, 36019), (181, 15920), (199, 14480), (362, 7960), (398, 7240), (724, 3980), (796, 3620), (905, 3184), (995, 2896), (1448, 1990), (1592, 1810)]