2781721768

素因数分解:

$2^3\times 7^4\times {\mathrm{97}}^1\times {\mathrm{1493}}^1$

素因数の和:1624

約数の個数: 80

約数和(自身を含む): 6151500180

約数和(自身を除く): 3369778412

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 97, 98, 194, 196, 343, 388, 392, 679, 686, 776, 1358, 1372, 1493, 2401, 2716, 2744, 2986, 4753, 4802, 5432, 5972, 9506, 9604, 10451, 11944, 19012, 19208, 20902, 33271, 38024, 41804, 66542, 73157, 83608, 133084, 144821, 146314, 232897, 266168, 289642, 292628, 465794, 512099, 579284, 585256, 931588, 1013747, 1024198, 1158568, 1863176, 2027494, 2048396, 3584693, 4054988, 4096792, 7096229, 7169386, 8109976, 14192458, 14338772, 28384916, 28677544, 49673603, 56769832, 99347206, 198694412, 347715221, 397388824, 695430442, 1390860884, 2781721768]

約数ペア:

[(1, 2781721768), (2, 1390860884), (4, 695430442), (7, 397388824), (8, 347715221), (14, 198694412), (28, 99347206), (49, 56769832), (56, 49673603), (97, 28677544), (98, 28384916), (194, 14338772), (196, 14192458), (343, 8109976), (388, 7169386), (392, 7096229), (679, 4096792), (686, 4054988), (776, 3584693), (1358, 2048396), (1372, 2027494), (1493, 1863176), (2401, 1158568), (2716, 1024198), (2744, 1013747), (2986, 931588), (4753, 585256), (4802, 579284), (5432, 512099), (5972, 465794), (9506, 292628), (9604, 289642), (10451, 266168), (11944, 232897), (19012, 146314), (19208, 144821), (20902, 133084), (33271, 83608), (38024, 73157), (41804, 66542)]