51256205

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:80

約数の個数: 96

約数和(自身を含む): 89376000

約数和(自身を除く): 38119795

約数列:

[1, 5, 7, 11, 13, 19, 35, 49, 55, 65, 77, 91, 95, 121, 133, 143, 209, 245, 247, 343, 385, 455, 539, 605, 637, 665, 715, 847, 931, 1001, 1045, 1235, 1463, 1573, 1715, 1729, 2299, 2695, 2717, 3185, 3773, 4235, 4459, 4655, 5005, 5929, 6517, 7007, 7315, 7865, 8645, 10241, 11011, 11495, 12103, 13585, 16093, 18865, 19019, 22295, 29645, 29887, 32585, 35035, 41503, 49049, 51205, 55055, 60515, 71687, 77077, 80465, 84721, 95095, 112651, 133133, 149435, 207515, 209209, 245245, 358435, 385385, 423605, 539539, 563255, 665665, 788557, 931931, 1046045, 1464463, 2697695, 3942785, 4659655, 7322315, 10251241, 51256205]

約数ペア:

[(1, 51256205), (5, 10251241), (7, 7322315), (11, 4659655), (13, 3942785), (19, 2697695), (35, 1464463), (49, 1046045), (55, 931931), (65, 788557), (77, 665665), (91, 563255), (95, 539539), (121, 423605), (133, 385385), (143, 358435), (209, 245245), (245, 209209), (247, 207515), (343, 149435), (385, 133133), (455, 112651), (539, 95095), (605, 84721), (637, 80465), (665, 77077), (715, 71687), (847, 60515), (931, 55055), (1001, 51205), (1045, 49049), (1235, 41503), (1463, 35035), (1573, 32585), (1715, 29887), (1729, 29645), (2299, 22295), (2695, 19019), (2717, 18865), (3185, 16093), (3773, 13585), (4235, 12103), (4459, 11495), (4655, 11011), (5005, 10241), (5929, 8645), (6517, 7865), (7007, 7315)]