142072720

素因数分解:

$2^4\times 5^1\times {\mathrm{1775909}}^1$

素因数の和:1775922

約数の個数: 20

約数和(自身を含む): 330319260

約数和(自身を除く): 188246540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1775909, 3551818, 7103636, 8879545, 14207272, 17759090, 28414544, 35518180, 71036360, 142072720]

約数ペア:

[(1, 142072720), (2, 71036360), (4, 35518180), (5, 28414544), (8, 17759090), (10, 14207272), (16, 8879545), (20, 7103636), (40, 3551818), (80, 1775909)]