201213220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{773897}}^1$

素因数の和:773919

約数の個数: 24

約数和(自身を含む): 455052024

約数和(自身を除く): 253838804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 773897, 1547794, 3095588, 3869485, 7738970, 10060661, 15477940, 20121322, 40242644, 50303305, 100606610, 201213220]

約数ペア:

[(1, 201213220), (2, 100606610), (4, 50303305), (5, 40242644), (10, 20121322), (13, 15477940), (20, 10060661), (26, 7738970), (52, 3869485), (65, 3095588), (130, 1547794), (260, 773897)]