12787984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:775

約数の個数: 40

約数和(自身を含む): 27310752

約数和(自身を除く): 14522768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 113, 176, 226, 452, 643, 904, 1243, 1286, 1808, 2486, 2572, 4972, 5144, 7073, 9944, 10288, 14146, 19888, 28292, 56584, 72659, 113168, 145318, 290636, 581272, 799249, 1162544, 1598498, 3196996, 6393992, 12787984]

約数ペア:

[(1, 12787984), (2, 6393992), (4, 3196996), (8, 1598498), (11, 1162544), (16, 799249), (22, 581272), (44, 290636), (88, 145318), (113, 113168), (176, 72659), (226, 56584), (452, 28292), (643, 19888), (904, 14146), (1243, 10288), (1286, 9944), (1808, 7073), (2486, 5144), (2572, 4972)]