18784780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134177}}^1$

素因数の和:134193

約数の個数: 24

約数和(自身を含む): 45083808

約数和(自身を除く): 26299028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134177, 268354, 536708, 670885, 939239, 1341770, 1878478, 2683540, 3756956, 4696195, 9392390, 18784780]

約数ペア:

[(1, 18784780), (2, 9392390), (4, 4696195), (5, 3756956), (7, 2683540), (10, 1878478), (14, 1341770), (20, 939239), (28, 670885), (35, 536708), (70, 268354), (140, 134177)]