18983860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135599}}^1$

素因数の和:135615

約数の個数: 24

約数和(自身を含む): 45561600

約数和(自身を除く): 26577740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135599, 271198, 542396, 677995, 949193, 1355990, 1898386, 2711980, 3796772, 4745965, 9491930, 18983860]

約数ペア:

[(1, 18983860), (2, 9491930), (4, 4745965), (5, 3796772), (7, 2711980), (10, 1898386), (14, 1355990), (20, 949193), (28, 677995), (35, 542396), (70, 271198), (140, 135599)]