201819780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1121221}}^1$

素因数の和:1121236

約数の個数: 36

約数和(自身を含む): 612187212

約数和(自身を除く): 410367432

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1121221, 2242442, 3363663, 4484884, 5606105, 6727326, 10090989, 11212210, 13454652, 16818315, 20181978, 22424420, 33636630, 40363956, 50454945, 67273260, 100909890, 201819780]

約数ペア:

[(1, 201819780), (2, 100909890), (3, 67273260), (4, 50454945), (5, 40363956), (6, 33636630), (9, 22424420), (10, 20181978), (12, 16818315), (15, 13454652), (18, 11212210), (20, 10090989), (30, 6727326), (36, 5606105), (45, 4484884), (60, 3363663), (90, 2242442), (180, 1121221)]