87972717

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 148838400

約数和(自身を除く): 60865683

約数列:

[1, 3, 7, 19, 21, 37, 57, 59, 101, 111, 133, 177, 259, 303, 399, 413, 703, 707, 777, 1121, 1239, 1919, 2109, 2121, 2183, 3363, 3737, 4921, 5757, 5959, 6549, 7847, 11211, 13433, 14763, 15281, 17877, 23541, 26159, 40299, 41477, 41713, 45843, 71003, 78477, 113221, 124431, 125139, 213009, 220483, 290339, 339663, 497021, 661449, 792547, 871017, 1491063, 1543381, 2377641, 4189177, 4630143, 12567531, 29324239, 87972717]

約数ペア:

[(1, 87972717), (3, 29324239), (7, 12567531), (19, 4630143), (21, 4189177), (37, 2377641), (57, 1543381), (59, 1491063), (101, 871017), (111, 792547), (133, 661449), (177, 497021), (259, 339663), (303, 290339), (399, 220483), (413, 213009), (703, 125139), (707, 124431), (777, 113221), (1121, 78477), (1239, 71003), (1919, 45843), (2109, 41713), (2121, 41477), (2183, 40299), (3363, 26159), (3737, 23541), (4921, 17877), (5757, 15281), (5959, 14763), (6549, 13433), (7847, 11211)]