189140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1$

素因数の和:216

約数の個数: 36

約数和(自身を含む): 464436

約数和(自身を除く): 275296

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 245, 386, 490, 772, 965, 980, 1351, 1930, 2702, 3860, 5404, 6755, 9457, 13510, 18914, 27020, 37828, 47285, 94570, 189140]

約数ペア:

[(1, 189140), (2, 94570), (4, 47285), (5, 37828), (7, 27020), (10, 18914), (14, 13510), (20, 9457), (28, 6755), (35, 5404), (49, 3860), (70, 2702), (98, 1930), (140, 1351), (193, 980), (196, 965), (245, 772), (386, 490)]