54781720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2017}}^1$

素因数の和:2132

約数の個数: 64

約数和(自身を含む): 142390080

約数和(自身を除く): 87608360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2017, 2716, 3395, 3880, 4034, 5432, 6790, 8068, 10085, 13580, 14119, 16136, 20170, 27160, 28238, 40340, 56476, 70595, 80680, 112952, 141190, 195649, 282380, 391298, 564760, 782596, 978245, 1369543, 1565192, 1956490, 2739086, 3912980, 5478172, 6847715, 7825960, 10956344, 13695430, 27390860, 54781720]

約数ペア:

[(1, 54781720), (2, 27390860), (4, 13695430), (5, 10956344), (7, 7825960), (8, 6847715), (10, 5478172), (14, 3912980), (20, 2739086), (28, 1956490), (35, 1565192), (40, 1369543), (56, 978245), (70, 782596), (97, 564760), (140, 391298), (194, 282380), (280, 195649), (388, 141190), (485, 112952), (679, 80680), (776, 70595), (970, 56476), (1358, 40340), (1940, 28238), (2017, 27160), (2716, 20170), (3395, 16136), (3880, 14119), (4034, 13580), (5432, 10085), (6790, 8068)]