18984140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135601}}^1$

素因数の和:135617

約数の個数: 24

約数和(自身を含む): 45562272

約数和(自身を除く): 26578132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135601, 271202, 542404, 678005, 949207, 1356010, 1898414, 2712020, 3796828, 4746035, 9492070, 18984140]

約数ペア:

[(1, 18984140), (2, 9492070), (4, 4746035), (5, 3796828), (7, 2712020), (10, 1898414), (14, 1356010), (20, 949207), (28, 678005), (35, 542404), (70, 271202), (140, 135601)]