256560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1069}}^1$

素因数の和:1085

約数の個数: 40

約数和(自身を含む): 796080

約数和(自身を除く): 539520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1069, 2138, 3207, 4276, 5345, 6414, 8552, 10690, 12828, 16035, 17104, 21380, 25656, 32070, 42760, 51312, 64140, 85520, 128280, 256560]

約数ペア:

[(1, 256560), (2, 128280), (3, 85520), (4, 64140), (5, 51312), (6, 42760), (8, 32070), (10, 25656), (12, 21380), (15, 17104), (16, 16035), (20, 12828), (24, 10690), (30, 8552), (40, 6414), (48, 5345), (60, 4276), (80, 3207), (120, 2138), (240, 1069)]