27898060

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17657}}^1$

素因数の和:17745

約数の個数: 24

約数和(自身を含む): 59330880

約数和(自身を除く): 31432820

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 17657, 35314, 70628, 88285, 176570, 353140, 1394903, 2789806, 5579612, 6974515, 13949030, 27898060]

約数ペア:

[(1, 27898060), (2, 13949030), (4, 6974515), (5, 5579612), (10, 2789806), (20, 1394903), (79, 353140), (158, 176570), (316, 88285), (395, 70628), (790, 35314), (1580, 17657)]