219861520

素因数分解:

$2^4\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{2713}}^1$

素因数の和:3739

約数の個数: 40

約数和(自身を含む): 511871256

約数和(自身を除く): 292009736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1013, 2026, 2713, 4052, 5065, 5426, 8104, 10130, 10852, 13565, 16208, 20260, 21704, 27130, 40520, 43408, 54260, 81040, 108520, 217040, 2748269, 5496538, 10993076, 13741345, 21986152, 27482690, 43972304, 54965380, 109930760, 219861520]

約数ペア:

[(1, 219861520), (2, 109930760), (4, 54965380), (5, 43972304), (8, 27482690), (10, 21986152), (16, 13741345), (20, 10993076), (40, 5496538), (80, 2748269), (1013, 217040), (2026, 108520), (2713, 81040), (4052, 54260), (5065, 43408), (5426, 40520), (8104, 27130), (10130, 21704), (10852, 20260), (13565, 16208)]