81215988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{3089}}^1$

素因数の和:3416

約数の個数: 48

約数和(自身を含む): 217338240

約数和(自身を除く): 136122252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 313, 626, 939, 1252, 1878, 2191, 3089, 3756, 4382, 6178, 6573, 8764, 9267, 12356, 13146, 18534, 21623, 26292, 37068, 43246, 64869, 86492, 129738, 259476, 966857, 1933714, 2900571, 3867428, 5801142, 6767999, 11602284, 13535998, 20303997, 27071996, 40607994, 81215988]

約数ペア:

[(1, 81215988), (2, 40607994), (3, 27071996), (4, 20303997), (6, 13535998), (7, 11602284), (12, 6767999), (14, 5801142), (21, 3867428), (28, 2900571), (42, 1933714), (84, 966857), (313, 259476), (626, 129738), (939, 86492), (1252, 64869), (1878, 43246), (2191, 37068), (3089, 26292), (3756, 21623), (4382, 18534), (6178, 13146), (6573, 12356), (8764, 9267)]