388705425

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{304867}}^1$

素因数の和:304897

約数の個数: 24

約数和(自身を含む): 680465376

約数和(自身を除く): 291759951

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 304867, 914601, 1524335, 4573005, 5182739, 7621675, 15548217, 22865025, 25913695, 77741085, 129568475, 388705425]

約数ペア:

[(1, 388705425), (3, 129568475), (5, 77741085), (15, 25913695), (17, 22865025), (25, 15548217), (51, 7621675), (75, 5182739), (85, 4573005), (255, 1524335), (425, 914601), (1275, 304867)]