81320785

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6163}}^1$

素因数の和:6217

約数の個数: 32

約数和(自身を含む): 124266240

約数和(自身を除く): 42945455

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1885, 2639, 6163, 13195, 30815, 43141, 80119, 178727, 215705, 400595, 560833, 893635, 1251089, 2323451, 2804165, 6255445, 11617255, 16264157, 81320785]

約数ペア:

[(1, 81320785), (5, 16264157), (7, 11617255), (13, 6255445), (29, 2804165), (35, 2323451), (65, 1251089), (91, 893635), (145, 560833), (203, 400595), (377, 215705), (455, 178727), (1015, 80119), (1885, 43141), (2639, 30815), (6163, 13195)]