20008144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 24988976

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 31, 52, 58, 62, 104, 107, 116, 124, 208, 214, 232, 248, 377, 403, 428, 464, 496, 754, 806, 856, 899, 1391, 1508, 1612, 1712, 1798, 2782, 3016, 3103, 3224, 3317, 3596, 5564, 6032, 6206, 6448, 6634, 7192, 11128, 11687, 12412, 13268, 14384, 22256, 23374, 24824, 26536, 40339, 43121, 46748, 49648, 53072, 80678, 86242, 93496, 96193, 161356, 172484, 186992, 192386, 322712, 344968, 384772, 645424, 689936, 769544, 1250509, 1539088, 2501018, 5002036, 10004072, 20008144]

約数ペア:

[(1, 20008144), (2, 10004072), (4, 5002036), (8, 2501018), (13, 1539088), (16, 1250509), (26, 769544), (29, 689936), (31, 645424), (52, 384772), (58, 344968), (62, 322712), (104, 192386), (107, 186992), (116, 172484), (124, 161356), (208, 96193), (214, 93496), (232, 86242), (248, 80678), (377, 53072), (403, 49648), (428, 46748), (464, 43121), (496, 40339), (754, 26536), (806, 24824), (856, 23374), (899, 22256), (1391, 14384), (1508, 13268), (1612, 12412), (1712, 11687), (1798, 11128), (2782, 7192), (3016, 6634), (3103, 6448), (3224, 6206), (3317, 6032), (3596, 5564)]