16940245

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 25007616

約数和(自身を除く): 8067371

約数列:

[1, 5, 7, 17, 35, 71, 85, 119, 355, 401, 497, 595, 1207, 2005, 2485, 2807, 6035, 6817, 8449, 14035, 28471, 34085, 42245, 47719, 142355, 199297, 238595, 484007, 996485, 2420035, 3388049, 16940245]

約数ペア:

[(1, 16940245), (5, 3388049), (7, 2420035), (17, 996485), (35, 484007), (71, 238595), (85, 199297), (119, 142355), (355, 47719), (401, 42245), (497, 34085), (595, 28471), (1207, 14035), (2005, 8449), (2485, 6817), (2807, 6035)]