256440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2137}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 769680

約数和(自身を除く): 513240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2137, 4274, 6411, 8548, 10685, 12822, 17096, 21370, 25644, 32055, 42740, 51288, 64110, 85480, 128220, 256440]

約数ペア:

[(1, 256440), (2, 128220), (3, 85480), (4, 64110), (5, 51288), (6, 42740), (8, 32055), (10, 25644), (12, 21370), (15, 17096), (20, 12822), (24, 10685), (30, 8548), (40, 6411), (60, 4274), (120, 2137)]