18982000

素因数分解:

$2^4\times 5^3\times {\mathrm{9491}}^1$

素因数の和:9514

約数の個数: 40

約数和(自身を含む): 45903312

約数和(自身を除く): 26921312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 9491, 18982, 37964, 47455, 75928, 94910, 151856, 189820, 237275, 379640, 474550, 759280, 949100, 1186375, 1898200, 2372750, 3796400, 4745500, 9491000, 18982000]

約数ペア:

[(1, 18982000), (2, 9491000), (4, 4745500), (5, 3796400), (8, 2372750), (10, 1898200), (16, 1186375), (20, 949100), (25, 759280), (40, 474550), (50, 379640), (80, 237275), (100, 189820), (125, 151856), (200, 94910), (250, 75928), (400, 47455), (500, 37964), (1000, 18982), (2000, 9491)]