50090000

素因数分解:

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

素因数の和:5037

約数の個数: 50

約数和(自身を含む): 121297110

約数和(自身を除く): 71207110

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, 5009, 10000, 10018, 20036, 25045, 40072, 50090, 80144, 100180, 125225, 200360, 250450, 400720, 500900, 626125, 1001800, 1252250, 2003600, 2504500, 3130625, 5009000, 6261250, 10018000, 12522500, 25045000, 50090000]

約数ペア:

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