144840640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{64661}}^1$

素因数の和:64685

約数の個数: 56

約数和(自身を含む): 394179552

約数和(自身を除く): 249338912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 64661, 129322, 258644, 323305, 452627, 517288, 646610, 905254, 1034576, 1293220, 1810508, 2069152, 2263135, 2586440, 3621016, 4138304, 4526270, 5172880, 7242032, 9052540, 10345760, 14484064, 18105080, 20691520, 28968128, 36210160, 72420320, 144840640]

約数ペア:

[(1, 144840640), (2, 72420320), (4, 36210160), (5, 28968128), (7, 20691520), (8, 18105080), (10, 14484064), (14, 10345760), (16, 9052540), (20, 7242032), (28, 5172880), (32, 4526270), (35, 4138304), (40, 3621016), (56, 2586440), (64, 2263135), (70, 2069152), (80, 1810508), (112, 1293220), (140, 1034576), (160, 905254), (224, 646610), (280, 517288), (320, 452627), (448, 323305), (560, 258644), (1120, 129322), (2240, 64661)]