2019902000

素因数分解:

$2^4\times 5^3\times {\mathrm{1009951}}^1$

素因数の和:1009974

約数の個数: 40

約数和(自身を含む): 4884127872

約数和(自身を除く): 2864225872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 1009951, 2019902, 4039804, 5049755, 8079608, 10099510, 16159216, 20199020, 25248775, 40398040, 50497550, 80796080, 100995100, 126243875, 201990200, 252487750, 403980400, 504975500, 1009951000, 2019902000]

約数ペア:

[(1, 2019902000), (2, 1009951000), (4, 504975500), (5, 403980400), (8, 252487750), (10, 201990200), (16, 126243875), (20, 100995100), (25, 80796080), (40, 50497550), (50, 40398040), (80, 25248775), (100, 20199020), (125, 16159216), (200, 10099510), (250, 8079608), (400, 5049755), (500, 4039804), (1000, 2019902), (2000, 1009951)]