20155905

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:316

約数の個数: 96

約数和(自身を含む): 45636480

約数和(自身を除く): 25480575

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 49, 55, 63, 77, 99, 105, 135, 147, 165, 189, 231, 245, 277, 297, 315, 385, 441, 495, 539, 693, 735, 831, 945, 1155, 1323, 1385, 1485, 1617, 1939, 2079, 2205, 2493, 2695, 3047, 3465, 4155, 4851, 5817, 6615, 7479, 8085, 9141, 9695, 10395, 12465, 13573, 14553, 15235, 17451, 21329, 24255, 27423, 29085, 37395, 40719, 45705, 52353, 63987, 67865, 72765, 82269, 87255, 106645, 122157, 137115, 149303, 191961, 203595, 261765, 319935, 366471, 411345, 447909, 575883, 610785, 746515, 959805, 1343727, 1832355, 2239545, 2879415, 4031181, 6718635, 20155905]

約数ペア:

[(1, 20155905), (3, 6718635), (5, 4031181), (7, 2879415), (9, 2239545), (11, 1832355), (15, 1343727), (21, 959805), (27, 746515), (33, 610785), (35, 575883), (45, 447909), (49, 411345), (55, 366471), (63, 319935), (77, 261765), (99, 203595), (105, 191961), (135, 149303), (147, 137115), (165, 122157), (189, 106645), (231, 87255), (245, 82269), (277, 72765), (297, 67865), (315, 63987), (385, 52353), (441, 45705), (495, 40719), (539, 37395), (693, 29085), (735, 27423), (831, 24255), (945, 21329), (1155, 17451), (1323, 15235), (1385, 14553), (1485, 13573), (1617, 12465), (1939, 10395), (2079, 9695), (2205, 9141), (2493, 8085), (2695, 7479), (3047, 6615), (3465, 5817), (4155, 4851)]