138976688

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{202001}}^1$

素因数の和:202052

約数の個数: 20

約数和(自身を含む): 275530728

約数和(自身を除く): 136554040

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 202001, 404002, 808004, 1616008, 3232016, 8686043, 17372086, 34744172, 69488344, 138976688]

約数ペア:

[(1, 138976688), (2, 69488344), (4, 34744172), (8, 17372086), (16, 8686043), (43, 3232016), (86, 1616008), (172, 808004), (344, 404002), (688, 202001)]