28025984

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1061

約数の個数: 64

約数和(自身を含む): 65932800

約数和(自身を除く): 37906816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 434, 448, 496, 868, 896, 992, 1009, 1736, 1984, 2018, 3472, 3968, 4036, 6944, 7063, 8072, 13888, 14126, 16144, 27776, 28252, 31279, 32288, 56504, 62558, 64576, 113008, 125116, 129152, 218953, 226016, 250232, 437906, 452032, 500464, 875812, 904064, 1000928, 1751624, 2001856, 3503248, 4003712, 7006496, 14012992, 28025984]

約数ペア:

[(1, 28025984), (2, 14012992), (4, 7006496), (7, 4003712), (8, 3503248), (14, 2001856), (16, 1751624), (28, 1000928), (31, 904064), (32, 875812), (56, 500464), (62, 452032), (64, 437906), (112, 250232), (124, 226016), (128, 218953), (217, 129152), (224, 125116), (248, 113008), (434, 64576), (448, 62558), (496, 56504), (868, 32288), (896, 31279), (992, 28252), (1009, 27776), (1736, 16144), (1984, 14126), (2018, 13888), (3472, 8072), (3968, 7063), (4036, 6944)]