28471905

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 64886976

約数和(自身を除く): 36415071

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 27, 33, 35, 45, 55, 63, 77, 81, 83, 99, 105, 121, 135, 165, 189, 231, 249, 297, 315, 363, 385, 405, 415, 495, 567, 581, 605, 693, 747, 847, 891, 913, 945, 1089, 1155, 1245, 1485, 1743, 1815, 2079, 2241, 2541, 2739, 2835, 2905, 3267, 3465, 3735, 4235, 4455, 4565, 5229, 5445, 6237, 6391, 6723, 7623, 8217, 8715, 9801, 10043, 10395, 11205, 12705, 13695, 15687, 16335, 19173, 22869, 24651, 26145, 30129, 31185, 31955, 33615, 38115, 41085, 47061, 49005, 50215, 57519, 68607, 70301, 73953, 78435, 90387, 95865, 114345, 123255, 150645, 172557, 210903, 235305, 271161, 287595, 343035, 351505, 369765, 451935, 517671, 632709, 813483, 862785, 1054515, 1355805, 1898127, 2588355, 3163545, 4067415, 5694381, 9490635, 28471905]

約数ペア:

[(1, 28471905), (3, 9490635), (5, 5694381), (7, 4067415), (9, 3163545), (11, 2588355), (15, 1898127), (21, 1355805), (27, 1054515), (33, 862785), (35, 813483), (45, 632709), (55, 517671), (63, 451935), (77, 369765), (81, 351505), (83, 343035), (99, 287595), (105, 271161), (121, 235305), (135, 210903), (165, 172557), (189, 150645), (231, 123255), (249, 114345), (297, 95865), (315, 90387), (363, 78435), (385, 73953), (405, 70301), (415, 68607), (495, 57519), (567, 50215), (581, 49005), (605, 47061), (693, 41085), (747, 38115), (847, 33615), (891, 31955), (913, 31185), (945, 30129), (1089, 26145), (1155, 24651), (1245, 22869), (1485, 19173), (1743, 16335), (1815, 15687), (2079, 13695), (2241, 12705), (2541, 11205), (2739, 10395), (2835, 10043), (2905, 9801), (3267, 8715), (3465, 8217), (3735, 7623), (4235, 6723), (4455, 6391), (4565, 6237), (5229, 5445)]