20604400

素因数分解:

$2^4\times 5^2\times {\mathrm{51511}}^1$

素因数の和:51529

約数の個数: 30

約数和(自身を含む): 49503032

約数和(自身を除く): 28898632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51511, 103022, 206044, 257555, 412088, 515110, 824176, 1030220, 1287775, 2060440, 2575550, 4120880, 5151100, 10302200, 20604400]

約数ペア:

[(1, 20604400), (2, 10302200), (4, 5151100), (5, 4120880), (8, 2575550), (10, 2060440), (16, 1287775), (20, 1030220), (25, 824176), (40, 515110), (50, 412088), (80, 257555), (100, 206044), (200, 103022), (400, 51511)]