51905205

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 80

約数和(自身を含む): 103707648

約数和(自身を除く): 51802443

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 61, 81, 99, 135, 165, 183, 191, 297, 305, 405, 495, 549, 573, 671, 891, 915, 955, 1485, 1647, 1719, 2013, 2101, 2745, 2865, 3355, 4455, 4941, 5157, 6039, 6303, 8235, 8595, 10065, 10505, 11651, 15471, 18117, 18909, 24705, 25785, 30195, 31515, 34953, 54351, 56727, 58255, 77355, 90585, 94545, 104859, 128161, 170181, 174765, 271755, 283635, 314577, 384483, 524295, 640805, 850905, 943731, 1153449, 1572885, 1922415, 3460347, 4718655, 5767245, 10381041, 17301735, 51905205]

約数ペア:

[(1, 51905205), (3, 17301735), (5, 10381041), (9, 5767245), (11, 4718655), (15, 3460347), (27, 1922415), (33, 1572885), (45, 1153449), (55, 943731), (61, 850905), (81, 640805), (99, 524295), (135, 384483), (165, 314577), (183, 283635), (191, 271755), (297, 174765), (305, 170181), (405, 128161), (495, 104859), (549, 94545), (573, 90585), (671, 77355), (891, 58255), (915, 56727), (955, 54351), (1485, 34953), (1647, 31515), (1719, 30195), (2013, 25785), (2101, 24705), (2745, 18909), (2865, 18117), (3355, 15471), (4455, 11651), (4941, 10505), (5157, 10065), (6039, 8595), (6303, 8235)]