18930940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135221}}^1$

素因数の和:135237

約数の個数: 24

約数和(自身を含む): 45434592

約数和(自身を除く): 26503652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135221, 270442, 540884, 676105, 946547, 1352210, 1893094, 2704420, 3786188, 4732735, 9465470, 18930940]

約数ペア:

[(1, 18930940), (2, 9465470), (4, 4732735), (5, 3786188), (7, 2704420), (10, 1893094), (14, 1352210), (20, 946547), (28, 676105), (35, 540884), (70, 270442), (140, 135221)]