18701780

素因数分解:

$2^2\times 5^1\times {\mathrm{967}}^2$

素因数の和:1943

約数の個数: 18

約数和(自身を含む): 39314394

約数和(自身を除く): 20612614

約数列:

[1, 2, 4, 5, 10, 20, 967, 1934, 3868, 4835, 9670, 19340, 935089, 1870178, 3740356, 4675445, 9350890, 18701780]

約数ペア:

[(1, 18701780), (2, 9350890), (4, 4675445), (5, 3740356), (10, 1870178), (20, 935089), (967, 19340), (1934, 9670), (3868, 4835)]