81345540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1355759}}^1$

素因数の和:1355771

約数の個数: 24

約数和(自身を含む): 227767680

約数和(自身を除く): 146422140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1355759, 2711518, 4067277, 5423036, 6778795, 8134554, 13557590, 16269108, 20336385, 27115180, 40672770, 81345540]

約数ペア:

[(1, 81345540), (2, 40672770), (3, 27115180), (4, 20336385), (5, 16269108), (6, 13557590), (10, 8134554), (12, 6778795), (15, 5423036), (20, 4067277), (30, 2711518), (60, 1355759)]