209223755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 283651200

約数和(自身を除く): 74427445

約数列:

[1, 5, 13, 23, 65, 115, 299, 349, 401, 1495, 1745, 2005, 4537, 5213, 8027, 9223, 22685, 26065, 40135, 46115, 104351, 119899, 139949, 521755, 599495, 699745, 1819337, 3218827, 9096685, 16094135, 41844751, 209223755]

約数ペア:

[(1, 209223755), (5, 41844751), (13, 16094135), (23, 9096685), (65, 3218827), (115, 1819337), (299, 699745), (349, 599495), (401, 521755), (1495, 139949), (1745, 119899), (2005, 104351), (4537, 46115), (5213, 40135), (8027, 26065), (9223, 22685)]