30506140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{217901}}^1$

素因数の和:217917

約数の個数: 24

約数和(自身を含む): 73215072

約数和(自身を除く): 42708932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 217901, 435802, 871604, 1089505, 1525307, 2179010, 3050614, 4358020, 6101228, 7626535, 15253070, 30506140]

約数ペア:

[(1, 30506140), (2, 15253070), (4, 7626535), (5, 6101228), (7, 4358020), (10, 3050614), (14, 2179010), (20, 1525307), (28, 1089505), (35, 871604), (70, 435802), (140, 217901)]