256972160

素因数分解:

$2^7\times 5^1\times {\mathrm{401519}}^1$

素因数の和:401538

約数の個数: 32

約数和(自身を含む): 614325600

約数和(自身を除く): 357353440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 401519, 803038, 1606076, 2007595, 3212152, 4015190, 6424304, 8030380, 12848608, 16060760, 25697216, 32121520, 51394432, 64243040, 128486080, 256972160]

約数ペア:

[(1, 256972160), (2, 128486080), (4, 64243040), (5, 51394432), (8, 32121520), (10, 25697216), (16, 16060760), (20, 12848608), (32, 8030380), (40, 6424304), (64, 4015190), (80, 3212152), (128, 2007595), (160, 1606076), (320, 803038), (640, 401519)]