28225288

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{283}}^1$

素因数の和:446

約数の個数: 64

約数和(自身を含む): 65842560

約数和(自身を除く): 37617272

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 137, 182, 274, 283, 364, 548, 566, 728, 959, 1096, 1132, 1781, 1918, 1981, 2264, 3562, 3679, 3836, 3962, 7124, 7358, 7672, 7924, 12467, 14248, 14716, 15848, 24934, 25753, 29432, 38771, 49868, 51506, 77542, 99736, 103012, 155084, 206024, 271397, 310168, 504023, 542794, 1008046, 1085588, 2016092, 2171176, 3528161, 4032184, 7056322, 14112644, 28225288]

約数ペア:

[(1, 28225288), (2, 14112644), (4, 7056322), (7, 4032184), (8, 3528161), (13, 2171176), (14, 2016092), (26, 1085588), (28, 1008046), (52, 542794), (56, 504023), (91, 310168), (104, 271397), (137, 206024), (182, 155084), (274, 103012), (283, 99736), (364, 77542), (548, 51506), (566, 49868), (728, 38771), (959, 29432), (1096, 25753), (1132, 24934), (1781, 15848), (1918, 14716), (1981, 14248), (2264, 12467), (3562, 7924), (3679, 7672), (3836, 7358), (3962, 7124)]