2118025

素因数分解:

$5^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:63

約数の個数: 48

約数和(自身を含む): 3472000

約数和(自身を除く): 1353975

約数列:

[1, 5, 7, 13, 19, 25, 35, 49, 65, 91, 95, 133, 175, 245, 247, 325, 343, 455, 475, 637, 665, 931, 1225, 1235, 1715, 1729, 2275, 3185, 3325, 4459, 4655, 6175, 6517, 8575, 8645, 12103, 15925, 22295, 23275, 32585, 43225, 60515, 84721, 111475, 162925, 302575, 423605, 2118025]

約数ペア:

[(1, 2118025), (5, 423605), (7, 302575), (13, 162925), (19, 111475), (25, 84721), (35, 60515), (49, 43225), (65, 32585), (91, 23275), (95, 22295), (133, 15925), (175, 12103), (245, 8645), (247, 8575), (325, 6517), (343, 6175), (455, 4655), (475, 4459), (637, 3325), (665, 3185), (931, 2275), (1225, 1729), (1235, 1715)]