209218785

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{2729}}^1$

素因数の和:3025

約数の個数: 32

約数和(自身を含む): 353808000

約数和(自身を除く): 144589215

約数列:

[1, 3, 5, 15, 19, 57, 95, 269, 285, 807, 1345, 2729, 4035, 5111, 8187, 13645, 15333, 25555, 40935, 51851, 76665, 155553, 259255, 734101, 777765, 2202303, 3670505, 11011515, 13947919, 41843757, 69739595, 209218785]

約数ペア:

[(1, 209218785), (3, 69739595), (5, 41843757), (15, 13947919), (19, 11011515), (57, 3670505), (95, 2202303), (269, 777765), (285, 734101), (807, 259255), (1345, 155553), (2729, 76665), (4035, 51851), (5111, 40935), (8187, 25555), (13645, 15333)]