16461520

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1381}}^1$

素因数の和:1543

約数の個数: 40

約数和(自身を含む): 38557800

約数和(自身を除く): 22096280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1381, 1490, 2384, 2762, 2980, 5524, 5960, 6905, 11048, 11920, 13810, 22096, 27620, 55240, 110480, 205769, 411538, 823076, 1028845, 1646152, 2057690, 3292304, 4115380, 8230760, 16461520]

約数ペア:

[(1, 16461520), (2, 8230760), (4, 4115380), (5, 3292304), (8, 2057690), (10, 1646152), (16, 1028845), (20, 823076), (40, 411538), (80, 205769), (149, 110480), (298, 55240), (596, 27620), (745, 22096), (1192, 13810), (1381, 11920), (1490, 11048), (2384, 6905), (2762, 5960), (2980, 5524)]