200980720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{10009}}^1$

素因数の和:10273

約数の個数: 40

約数和(自身を含む): 469188720

約数和(自身を除く): 268208000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10009, 10040, 20018, 20080, 40036, 50045, 80072, 100090, 160144, 200180, 400360, 800720, 2512259, 5024518, 10049036, 12561295, 20098072, 25122590, 40196144, 50245180, 100490360, 200980720]

約数ペア:

[(1, 200980720), (2, 100490360), (4, 50245180), (5, 40196144), (8, 25122590), (10, 20098072), (16, 12561295), (20, 10049036), (40, 5024518), (80, 2512259), (251, 800720), (502, 400360), (1004, 200180), (1255, 160144), (2008, 100090), (2510, 80072), (4016, 50045), (5020, 40036), (10009, 20080), (10040, 20018)]