1820003600

素因数分解:

$2^4\times 5^2\times {\mathrm{4550009}}^1$

素因数の和:4550027

約数の個数: 30

約数和(自身を含む): 4372559610

約数和(自身を除く): 2552556010

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4550009, 9100018, 18200036, 22750045, 36400072, 45500090, 72800144, 91000180, 113750225, 182000360, 227500450, 364000720, 455000900, 910001800, 1820003600]

約数ペア:

[(1, 1820003600), (2, 910001800), (4, 455000900), (5, 364000720), (8, 227500450), (10, 182000360), (16, 113750225), (20, 91000180), (25, 72800144), (40, 45500090), (50, 36400072), (80, 22750045), (100, 18200036), (200, 9100018), (400, 4550009)]