28096840

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2939}}^1$

素因数の和:3189

約数の個数: 32

約数和(自身を含む): 63504000

約数和(自身を除く): 35407160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 2939, 4780, 5878, 9560, 11756, 14695, 23512, 29390, 58780, 117560, 702421, 1404842, 2809684, 3512105, 5619368, 7024210, 14048420, 28096840]

約数ペア:

[(1, 28096840), (2, 14048420), (4, 7024210), (5, 5619368), (8, 3512105), (10, 2809684), (20, 1404842), (40, 702421), (239, 117560), (478, 58780), (956, 29390), (1195, 23512), (1912, 14695), (2390, 11756), (2939, 9560), (4780, 5878)]