285660340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2040431}}^1$

素因数の和:2040447

約数の個数: 24

約数和(自身を含む): 685585152

約数和(自身を除く): 399924812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2040431, 4080862, 8161724, 10202155, 14283017, 20404310, 28566034, 40808620, 57132068, 71415085, 142830170, 285660340]

約数ペア:

[(1, 285660340), (2, 142830170), (4, 71415085), (5, 57132068), (7, 40808620), (10, 28566034), (14, 20404310), (20, 14283017), (28, 10202155), (35, 8161724), (70, 4080862), (140, 2040431)]