257416620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4290277}}^1$

素因数の和:4290289

約数の個数: 24

約数和(自身を含む): 720766704

約数和(自身を除く): 463350084

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4290277, 8580554, 12870831, 17161108, 21451385, 25741662, 42902770, 51483324, 64354155, 85805540, 128708310, 257416620]

約数ペア:

[(1, 257416620), (2, 128708310), (3, 85805540), (4, 64354155), (5, 51483324), (6, 42902770), (10, 25741662), (12, 21451385), (15, 17161108), (20, 12870831), (30, 8580554), (60, 4290277)]