261489712

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{4357}}^1$

素因数の和:4418

約数の個数: 60

約数和(自身を含む): 574977088

約数和(自身を除く): 313487376

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 121, 124, 176, 242, 248, 341, 484, 496, 682, 968, 1364, 1936, 2728, 3751, 4357, 5456, 7502, 8714, 15004, 17428, 30008, 34856, 47927, 60016, 69712, 95854, 135067, 191708, 270134, 383416, 527197, 540268, 766832, 1054394, 1080536, 1485737, 2108788, 2161072, 2971474, 4217576, 5942948, 8435152, 11885896, 16343107, 23771792, 32686214, 65372428, 130744856, 261489712]

約数ペア:

[(1, 261489712), (2, 130744856), (4, 65372428), (8, 32686214), (11, 23771792), (16, 16343107), (22, 11885896), (31, 8435152), (44, 5942948), (62, 4217576), (88, 2971474), (121, 2161072), (124, 2108788), (176, 1485737), (242, 1080536), (248, 1054394), (341, 766832), (484, 540268), (496, 527197), (682, 383416), (968, 270134), (1364, 191708), (1936, 135067), (2728, 95854), (3751, 69712), (4357, 60016), (5456, 47927), (7502, 34856), (8714, 30008), (15004, 17428)]