81218704

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:848

約数の個数: 80

約数和(自身を含む): 192487680

約数和(自身を除く): 111268976

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 41, 46, 56, 82, 92, 112, 161, 164, 184, 287, 322, 328, 368, 574, 644, 656, 769, 943, 1148, 1288, 1538, 1886, 2296, 2576, 3076, 3772, 4592, 5383, 6152, 6601, 7544, 10766, 12304, 13202, 15088, 17687, 21532, 26404, 31529, 35374, 43064, 52808, 63058, 70748, 86128, 105616, 123809, 126116, 141496, 220703, 247618, 252232, 282992, 441406, 495236, 504464, 725167, 882812, 990472, 1450334, 1765624, 1980944, 2900668, 3531248, 5076169, 5801336, 10152338, 11602672, 20304676, 40609352, 81218704]

約数ペア:

[(1, 81218704), (2, 40609352), (4, 20304676), (7, 11602672), (8, 10152338), (14, 5801336), (16, 5076169), (23, 3531248), (28, 2900668), (41, 1980944), (46, 1765624), (56, 1450334), (82, 990472), (92, 882812), (112, 725167), (161, 504464), (164, 495236), (184, 441406), (287, 282992), (322, 252232), (328, 247618), (368, 220703), (574, 141496), (644, 126116), (656, 123809), (769, 105616), (943, 86128), (1148, 70748), (1288, 63058), (1538, 52808), (1886, 43064), (2296, 35374), (2576, 31529), (3076, 26404), (3772, 21532), (4592, 17687), (5383, 15088), (6152, 13202), (6601, 12304), (7544, 10766)]