40171976

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 83579760

約数和(自身を除く): 43407784

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 169, 172, 338, 344, 559, 676, 691, 1118, 1352, 1382, 2236, 2764, 4472, 5528, 7267, 8983, 14534, 17966, 29068, 29713, 35932, 58136, 59426, 71864, 116779, 118852, 233558, 237704, 386269, 467116, 772538, 934232, 1545076, 3090152, 5021497, 10042994, 20085988, 40171976]

約数ペア:

[(1, 40171976), (2, 20085988), (4, 10042994), (8, 5021497), (13, 3090152), (26, 1545076), (43, 934232), (52, 772538), (86, 467116), (104, 386269), (169, 237704), (172, 233558), (338, 118852), (344, 116779), (559, 71864), (676, 59426), (691, 58136), (1118, 35932), (1352, 29713), (1382, 29068), (2236, 17966), (2764, 14534), (4472, 8983), (5528, 7267)]