78920280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{219223}}^1$

素因数の和:219240

約数の個数: 48

約数和(自身を含む): 256492080

約数和(自身を除く): 177571800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 219223, 438446, 657669, 876892, 1096115, 1315338, 1753784, 1973007, 2192230, 2630676, 3288345, 3946014, 4384460, 5261352, 6576690, 7892028, 8768920, 9865035, 13153380, 15784056, 19730070, 26306760, 39460140, 78920280]

約数ペア:

[(1, 78920280), (2, 39460140), (3, 26306760), (4, 19730070), (5, 15784056), (6, 13153380), (8, 9865035), (9, 8768920), (10, 7892028), (12, 6576690), (15, 5261352), (18, 4384460), (20, 3946014), (24, 3288345), (30, 2630676), (36, 2192230), (40, 1973007), (45, 1753784), (60, 1315338), (72, 1096115), (90, 876892), (120, 657669), (180, 438446), (360, 219223)]