28645840

素因数分解:

$2^4\times 5^1\times {\mathrm{358073}}^1$

素因数の和:358086

約数の個数: 20

約数和(自身を含む): 66601764

約数和(自身を除く): 37955924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358073, 716146, 1432292, 1790365, 2864584, 3580730, 5729168, 7161460, 14322920, 28645840]

約数ペア:

[(1, 28645840), (2, 14322920), (4, 7161460), (5, 5729168), (8, 3580730), (10, 2864584), (16, 1790365), (20, 1432292), (40, 716146), (80, 358073)]