12893985

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 26019840

約数和(自身を除く): 13125855

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 79, 81, 93, 117, 135, 155, 195, 237, 279, 351, 395, 403, 405, 465, 585, 711, 837, 1027, 1053, 1185, 1209, 1395, 1755, 2015, 2133, 2449, 2511, 3081, 3555, 3627, 4185, 5135, 5265, 6045, 6399, 7347, 9243, 10665, 10881, 12245, 12555, 15405, 18135, 22041, 27729, 31837, 31995, 32643, 36735, 46215, 54405, 66123, 83187, 95511, 110205, 138645, 159185, 163215, 198369, 286533, 330615, 415935, 477555, 859599, 991845, 1432665, 2578797, 4297995, 12893985]

約数ペア:

[(1, 12893985), (3, 4297995), (5, 2578797), (9, 1432665), (13, 991845), (15, 859599), (27, 477555), (31, 415935), (39, 330615), (45, 286533), (65, 198369), (79, 163215), (81, 159185), (93, 138645), (117, 110205), (135, 95511), (155, 83187), (195, 66123), (237, 54405), (279, 46215), (351, 36735), (395, 32643), (403, 31995), (405, 31837), (465, 27729), (585, 22041), (711, 18135), (837, 15405), (1027, 12555), (1053, 12245), (1185, 10881), (1209, 10665), (1395, 9243), (1755, 7347), (2015, 6399), (2133, 6045), (2449, 5265), (2511, 5135), (3081, 4185), (3555, 3627)]