728491816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 1568979720

約数和(自身を除く): 840487904

約数列:

[1, 2, 4, 8, 13, 26, 31, 37, 52, 62, 74, 104, 124, 148, 197, 248, 296, 394, 403, 481, 788, 806, 961, 962, 1147, 1576, 1612, 1922, 1924, 2294, 2561, 3224, 3844, 3848, 4588, 5122, 6107, 7289, 7688, 9176, 10244, 12214, 12493, 14578, 14911, 20488, 24428, 24986, 29156, 29822, 35557, 48856, 49972, 58312, 59644, 71114, 79391, 94757, 99944, 119288, 142228, 158782, 189317, 189514, 225959, 284456, 317564, 378634, 379028, 451918, 462241, 635128, 757268, 758056, 903836, 924482, 1514536, 1807672, 1848964, 2461121, 2937467, 3697928, 4922242, 5874934, 7004729, 9844484, 11749868, 14009458, 19688968, 23499736, 28018916, 56037832, 91061477, 182122954, 364245908, 728491816]

約数ペア:

[(1, 728491816), (2, 364245908), (4, 182122954), (8, 91061477), (13, 56037832), (26, 28018916), (31, 23499736), (37, 19688968), (52, 14009458), (62, 11749868), (74, 9844484), (104, 7004729), (124, 5874934), (148, 4922242), (197, 3697928), (248, 2937467), (296, 2461121), (394, 1848964), (403, 1807672), (481, 1514536), (788, 924482), (806, 903836), (961, 758056), (962, 757268), (1147, 635128), (1576, 462241), (1612, 451918), (1922, 379028), (1924, 378634), (2294, 317564), (2561, 284456), (3224, 225959), (3844, 189514), (3848, 189317), (4588, 158782), (5122, 142228), (6107, 119288), (7289, 99944), (7688, 94757), (9176, 79391), (10244, 71114), (12214, 59644), (12493, 58312), (14578, 49972), (14911, 48856), (20488, 35557), (24428, 29822), (24986, 29156)]