80985780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449921}}^1$

素因数の和:449936

約数の個数: 36

約数和(自身を含む): 245657412

約数和(自身を除く): 164671632

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449921, 899842, 1349763, 1799684, 2249605, 2699526, 4049289, 4499210, 5399052, 6748815, 8098578, 8998420, 13497630, 16197156, 20246445, 26995260, 40492890, 80985780]

約数ペア:

[(1, 80985780), (2, 40492890), (3, 26995260), (4, 20246445), (5, 16197156), (6, 13497630), (9, 8998420), (10, 8098578), (12, 6748815), (15, 5399052), (18, 4499210), (20, 4049289), (30, 2699526), (36, 2249605), (45, 1799684), (60, 1349763), (90, 899842), (180, 449921)]