30257990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{61751}}^1$

素因数の和:61772

約数の個数: 24

約数和(自身を含む): 63357552

約数和(自身を除く): 33099562

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 61751, 123502, 308755, 432257, 617510, 864514, 2161285, 3025799, 4322570, 6051598, 15128995, 30257990]

約数ペア:

[(1, 30257990), (2, 15128995), (5, 6051598), (7, 4322570), (10, 3025799), (14, 2161285), (35, 864514), (49, 617510), (70, 432257), (98, 308755), (245, 123502), (490, 61751)]