668464

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1068

約数の個数: 20

約数和(自身を含む): 1328040

約数和(自身を除く): 659576

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1019, 2038, 4076, 8152, 16304, 41779, 83558, 167116, 334232, 668464]

約数ペア:

[(1, 668464), (2, 334232), (4, 167116), (8, 83558), (16, 41779), (41, 16304), (82, 8152), (164, 4076), (328, 2038), (656, 1019)]