18103636640

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{890927}}^1$

素因数の和:891069

約数の個数: 48

約数和(自身を含む): 43106660352

約数和(自身を除く): 25003023712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 20320, 890927, 1781854, 3563708, 4454635, 7127416, 8909270, 14254832, 17818540, 28509664, 35637080, 71274160, 113147729, 142548320, 226295458, 452590916, 565738645, 905181832, 1131477290, 1810363664, 2262954580, 3620727328, 4525909160, 9051818320, 18103636640]

約数ペア:

[(1, 18103636640), (2, 9051818320), (4, 4525909160), (5, 3620727328), (8, 2262954580), (10, 1810363664), (16, 1131477290), (20, 905181832), (32, 565738645), (40, 452590916), (80, 226295458), (127, 142548320), (160, 113147729), (254, 71274160), (508, 35637080), (635, 28509664), (1016, 17818540), (1270, 14254832), (2032, 8909270), (2540, 7127416), (4064, 4454635), (5080, 3563708), (10160, 1781854), (20320, 890927)]