31152860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19717}}^1$

素因数の和:19805

約数の個数: 24

約数和(自身を含む): 66252480

約数和(自身を除く): 35099620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19717, 39434, 78868, 98585, 197170, 394340, 1557643, 3115286, 6230572, 7788215, 15576430, 31152860]

約数ペア:

[(1, 31152860), (2, 15576430), (4, 7788215), (5, 6230572), (10, 3115286), (20, 1557643), (79, 394340), (158, 197170), (316, 98585), (395, 78868), (790, 39434), (1580, 19717)]