17898020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127843}}^1$

素因数の和:127859

約数の個数: 24

約数和(自身を含む): 42955584

約数和(自身を除く): 25057564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 127843, 255686, 511372, 639215, 894901, 1278430, 1789802, 2556860, 3579604, 4474505, 8949010, 17898020]

約数ペア:

[(1, 17898020), (2, 8949010), (4, 4474505), (5, 3579604), (7, 2556860), (10, 1789802), (14, 1278430), (20, 894901), (28, 639215), (35, 511372), (70, 255686), (140, 127843)]