81856620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{454759}}^1$

素因数の和:454774

約数の個数: 36

約数和(自身を含む): 248298960

約数和(自身を除く): 166442340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 454759, 909518, 1364277, 1819036, 2273795, 2728554, 4092831, 4547590, 5457108, 6821385, 8185662, 9095180, 13642770, 16371324, 20464155, 27285540, 40928310, 81856620]

約数ペア:

[(1, 81856620), (2, 40928310), (3, 27285540), (4, 20464155), (5, 16371324), (6, 13642770), (9, 9095180), (10, 8185662), (12, 6821385), (15, 5457108), (18, 4547590), (20, 4092831), (30, 2728554), (36, 2273795), (45, 1819036), (60, 1364277), (90, 909518), (180, 454759)]