30904880

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5441}}^1$

素因数の和:5525

約数の個数: 40

約数和(自身を含む): 72879264

約数和(自身を除く): 41974384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5441, 5680, 10882, 21764, 27205, 43528, 54410, 87056, 108820, 217640, 386311, 435280, 772622, 1545244, 1931555, 3090488, 3863110, 6180976, 7726220, 15452440, 30904880]

約数ペア:

[(1, 30904880), (2, 15452440), (4, 7726220), (5, 6180976), (8, 3863110), (10, 3090488), (16, 1931555), (20, 1545244), (40, 772622), (71, 435280), (80, 386311), (142, 217640), (284, 108820), (355, 87056), (568, 54410), (710, 43528), (1136, 27205), (1420, 21764), (2840, 10882), (5441, 5680)]