71941815

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 145566720

約数和(自身を除く): 73624905

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 71, 89, 99, 115, 165, 207, 213, 253, 267, 345, 355, 445, 495, 639, 759, 781, 801, 979, 1035, 1065, 1265, 1335, 1633, 2047, 2277, 2343, 2937, 3195, 3795, 3905, 4005, 4895, 4899, 6141, 6319, 7029, 8165, 8811, 10235, 11385, 11715, 14685, 14697, 17963, 18423, 18957, 22517, 24495, 30705, 31595, 35145, 44055, 53889, 56871, 67551, 69509, 73485, 89815, 92115, 94785, 112585, 145337, 161667, 202653, 208527, 269445, 284355, 337755, 347545, 436011, 625581, 726685, 808335, 1013265, 1042635, 1308033, 1598707, 2180055, 3127905, 4796121, 6540165, 7993535, 14388363, 23980605, 71941815]

約数ペア:

[(1, 71941815), (3, 23980605), (5, 14388363), (9, 7993535), (11, 6540165), (15, 4796121), (23, 3127905), (33, 2180055), (45, 1598707), (55, 1308033), (69, 1042635), (71, 1013265), (89, 808335), (99, 726685), (115, 625581), (165, 436011), (207, 347545), (213, 337755), (253, 284355), (267, 269445), (345, 208527), (355, 202653), (445, 161667), (495, 145337), (639, 112585), (759, 94785), (781, 92115), (801, 89815), (979, 73485), (1035, 69509), (1065, 67551), (1265, 56871), (1335, 53889), (1633, 44055), (2047, 35145), (2277, 31595), (2343, 30705), (2937, 24495), (3195, 22517), (3795, 18957), (3905, 18423), (4005, 17963), (4895, 14697), (4899, 14685), (6141, 11715), (6319, 11385), (7029, 10235), (8165, 8811)]