250450000

素因数分解:

$2^4\times 5^5\times {\mathrm{5009}}^1$

素因数の和:5042

約数の個数: 60

約数和(自身を含む): 606640860

約数和(自身を除く): 356190860

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, 3125, 5000, 5009, 6250, 10000, 10018, 12500, 20036, 25000, 25045, 40072, 50000, 50090, 80144, 100180, 125225, 200360, 250450, 400720, 500900, 626125, 1001800, 1252250, 2003600, 2504500, 3130625, 5009000, 6261250, 10018000, 12522500, 15653125, 25045000, 31306250, 50090000, 62612500, 125225000, 250450000]

約数ペア:

[(1, 250450000), (2, 125225000), (4, 62612500), (5, 50090000), (8, 31306250), (10, 25045000), (16, 15653125), (20, 12522500), (25, 10018000), (40, 6261250), (50, 5009000), (80, 3130625), (100, 2504500), (125, 2003600), (200, 1252250), (250, 1001800), (400, 626125), (500, 500900), (625, 400720), (1000, 250450), (1250, 200360), (2000, 125225), (2500, 100180), (3125, 80144), (5000, 50090), (5009, 50000), (6250, 40072), (10000, 25045), (10018, 25000), (12500, 20036)]