28305920

素因数分解:

$2^9\times 5^1\times {\mathrm{11057}}^1$

素因数の和:11080

約数の個数: 40

約数和(自身を含む): 67874004

約数和(自身を除く): 39568084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 11057, 22114, 44228, 55285, 88456, 110570, 176912, 221140, 353824, 442280, 707648, 884560, 1415296, 1769120, 2830592, 3538240, 5661184, 7076480, 14152960, 28305920]

約数ペア:

[(1, 28305920), (2, 14152960), (4, 7076480), (5, 5661184), (8, 3538240), (10, 2830592), (16, 1769120), (20, 1415296), (32, 884560), (40, 707648), (64, 442280), (80, 353824), (128, 221140), (160, 176912), (256, 110570), (320, 88456), (512, 55285), (640, 44228), (1280, 22114), (2560, 11057)]