256432560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1068469}}^1$

素因数の和:1068485

約数の個数: 40

約数和(自身を含む): 794941680

約数和(自身を除く): 538509120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1068469, 2136938, 3205407, 4273876, 5342345, 6410814, 8547752, 10684690, 12821628, 16027035, 17095504, 21369380, 25643256, 32054070, 42738760, 51286512, 64108140, 85477520, 128216280, 256432560]

約数ペア:

[(1, 256432560), (2, 128216280), (3, 85477520), (4, 64108140), (5, 51286512), (6, 42738760), (8, 32054070), (10, 25643256), (12, 21369380), (15, 17095504), (16, 16027035), (20, 12821628), (24, 10684690), (30, 8547752), (40, 6410814), (48, 5342345), (60, 4273876), (80, 3205407), (120, 2136938), (240, 1068469)]