81857765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{13171}}^1$

素因数の和:13300

約数の個数: 16

約数和(自身を含む): 108115776

約数和(自身を除く): 26258011

約数列:

[1, 5, 11, 55, 113, 565, 1243, 6215, 13171, 65855, 144881, 724405, 1488323, 7441615, 16371553, 81857765]

約数ペア:

[(1, 81857765), (5, 16371553), (11, 7441615), (55, 1488323), (113, 724405), (565, 144881), (1243, 65855), (6215, 13171)]