209366905

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 291110400

約数和(自身を除く): 81743495

約数列:

[1, 5, 11, 37, 47, 55, 121, 185, 199, 235, 407, 517, 605, 995, 1739, 2035, 2189, 2585, 4477, 5687, 7363, 8695, 9353, 10945, 19129, 22385, 24079, 28435, 36815, 46765, 80993, 95645, 102883, 120395, 210419, 346061, 404965, 514415, 890923, 1052095, 1131713, 1730305, 3806671, 4454615, 5658565, 19033355, 41873381, 209366905]

約数ペア:

[(1, 209366905), (5, 41873381), (11, 19033355), (37, 5658565), (47, 4454615), (55, 3806671), (121, 1730305), (185, 1131713), (199, 1052095), (235, 890923), (407, 514415), (517, 404965), (605, 346061), (995, 210419), (1739, 120395), (2035, 102883), (2189, 95645), (2585, 80993), (4477, 46765), (5687, 36815), (7363, 28435), (8695, 24079), (9353, 22385), (10945, 19129)]