640824958

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1\times {\mathrm{11273}}^1$

素因数の和:11979

約数の個数: 16

約数和(自身を含む): 985167216

約数和(自身を除く): 344342258

約数列:

[1, 2, 43, 86, 661, 1322, 11273, 22546, 28423, 56846, 484739, 969478, 7451453, 14902906, 320412479, 640824958]

約数ペア:

[(1, 640824958), (2, 320412479), (43, 14902906), (86, 7451453), (661, 969478), (1322, 484739), (11273, 56846), (22546, 28423)]