428995

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:139

約数の個数: 24

約数和(自身を含む): 640224

約数和(自身を除く): 211229

約数列:

[1, 5, 7, 17, 35, 49, 85, 103, 119, 245, 515, 595, 721, 833, 1751, 3605, 4165, 5047, 8755, 12257, 25235, 61285, 85799, 428995]

約数ペア:

[(1, 428995), (5, 85799), (7, 61285), (17, 25235), (35, 12257), (49, 8755), (85, 5047), (103, 4165), (119, 3605), (245, 1751), (515, 833), (595, 721)]