156985280

素因数分解:

$2^6\times 5^1\times {\mathrm{490579}}^1$

素因数の和:490596

約数の個数: 28

約数和(自身を含む): 373821960

約数和(自身を除く): 216836680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 490579, 981158, 1962316, 2452895, 3924632, 4905790, 7849264, 9811580, 15698528, 19623160, 31397056, 39246320, 78492640, 156985280]

約数ペア:

[(1, 156985280), (2, 78492640), (4, 39246320), (5, 31397056), (8, 19623160), (10, 15698528), (16, 9811580), (20, 7849264), (32, 4905790), (40, 3924632), (64, 2452895), (80, 1962316), (160, 981158), (320, 490579)]