255420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1$

素因数の和:72

約数の個数: 96

約数和(自身を含む): 887040

約数和(自身を除く): 631620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 43, 44, 45, 54, 55, 60, 66, 86, 90, 99, 108, 110, 129, 132, 135, 165, 172, 180, 198, 215, 220, 258, 270, 297, 330, 387, 396, 430, 473, 495, 516, 540, 594, 645, 660, 774, 860, 946, 990, 1161, 1188, 1290, 1419, 1485, 1548, 1892, 1935, 1980, 2322, 2365, 2580, 2838, 2970, 3870, 4257, 4644, 4730, 5676, 5805, 5940, 7095, 7740, 8514, 9460, 11610, 12771, 14190, 17028, 21285, 23220, 25542, 28380, 42570, 51084, 63855, 85140, 127710, 255420]

約数ペア:

[(1, 255420), (2, 127710), (3, 85140), (4, 63855), (5, 51084), (6, 42570), (9, 28380), (10, 25542), (11, 23220), (12, 21285), (15, 17028), (18, 14190), (20, 12771), (22, 11610), (27, 9460), (30, 8514), (33, 7740), (36, 7095), (43, 5940), (44, 5805), (45, 5676), (54, 4730), (55, 4644), (60, 4257), (66, 3870), (86, 2970), (90, 2838), (99, 2580), (108, 2365), (110, 2322), (129, 1980), (132, 1935), (135, 1892), (165, 1548), (172, 1485), (180, 1419), (198, 1290), (215, 1188), (220, 1161), (258, 990), (270, 946), (297, 860), (330, 774), (387, 660), (396, 645), (430, 594), (473, 540), (495, 516)]