253079905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{204923}}^1$

素因数の和:204960

約数の個数: 16

約数和(自身を含む): 344272320

約数和(自身を除く): 91192415

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 204923, 1024615, 2663999, 3893537, 13319995, 19467685, 50615981, 253079905]

約数ペア:

[(1, 253079905), (5, 50615981), (13, 19467685), (19, 13319995), (65, 3893537), (95, 2663999), (247, 1024615), (1235, 204923)]