299740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2141}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 719712

約数和(自身を除く): 419972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2141, 4282, 8564, 10705, 14987, 21410, 29974, 42820, 59948, 74935, 149870, 299740]

約数ペア:

[(1, 299740), (2, 149870), (4, 74935), (5, 59948), (7, 42820), (10, 29974), (14, 21410), (20, 14987), (28, 10705), (35, 8564), (70, 4282), (140, 2141)]