50450000

素因数分解:

$2^4\times 5^5\times {\mathrm{1009}}^1$

素因数の和:1042

約数の個数: 60

約数和(自身を含む): 122296860

約数和(自身を除く): 71846860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1009, 1250, 2000, 2018, 2500, 3125, 4036, 5000, 5045, 6250, 8072, 10000, 10090, 12500, 16144, 20180, 25000, 25225, 40360, 50000, 50450, 80720, 100900, 126125, 201800, 252250, 403600, 504500, 630625, 1009000, 1261250, 2018000, 2522500, 3153125, 5045000, 6306250, 10090000, 12612500, 25225000, 50450000]

約数ペア:

[(1, 50450000), (2, 25225000), (4, 12612500), (5, 10090000), (8, 6306250), (10, 5045000), (16, 3153125), (20, 2522500), (25, 2018000), (40, 1261250), (50, 1009000), (80, 630625), (100, 504500), (125, 403600), (200, 252250), (250, 201800), (400, 126125), (500, 100900), (625, 80720), (1000, 50450), (1009, 50000), (1250, 40360), (2000, 25225), (2018, 25000), (2500, 20180), (3125, 16144), (4036, 12500), (5000, 10090), (5045, 10000), (6250, 8072)]