281241520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{502217}}^1$

素因数の和:502237

約数の個数: 40

約数和(自身を含む): 747300384

約数和(自身を除く): 466058864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 502217, 1004434, 2008868, 2511085, 3515519, 4017736, 5022170, 7031038, 8035472, 10044340, 14062076, 17577595, 20088680, 28124152, 35155190, 40177360, 56248304, 70310380, 140620760, 281241520]

約数ペア:

[(1, 281241520), (2, 140620760), (4, 70310380), (5, 56248304), (7, 40177360), (8, 35155190), (10, 28124152), (14, 20088680), (16, 17577595), (20, 14062076), (28, 10044340), (35, 8035472), (40, 7031038), (56, 5022170), (70, 4017736), (80, 3515519), (112, 2511085), (140, 2008868), (280, 1004434), (560, 502217)]