720190000

素因数分解:

$2^4\times 5^4\times {\mathrm{72019}}^1$

素因数の和:72047

約数の個数: 50

約数和(自身を含む): 1743676220

約数和(自身を除く): 1023486220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 10000, 72019, 144038, 288076, 360095, 576152, 720190, 1152304, 1440380, 1800475, 2880760, 3600950, 5761520, 7201900, 9002375, 14403800, 18004750, 28807600, 36009500, 45011875, 72019000, 90023750, 144038000, 180047500, 360095000, 720190000]

約数ペア:

[(1, 720190000), (2, 360095000), (4, 180047500), (5, 144038000), (8, 90023750), (10, 72019000), (16, 45011875), (20, 36009500), (25, 28807600), (40, 18004750), (50, 14403800), (80, 9002375), (100, 7201900), (125, 5761520), (200, 3600950), (250, 2880760), (400, 1800475), (500, 1440380), (625, 1152304), (1000, 720190), (1250, 576152), (2000, 360095), (2500, 288076), (5000, 144038), (10000, 72019)]