16908080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:406

約数の個数: 80

約数和(自身を含む): 45503040

約数和(自身を除く): 28594960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 277, 280, 436, 545, 554, 560, 763, 872, 1090, 1108, 1385, 1526, 1744, 1939, 2180, 2216, 2770, 3052, 3815, 3878, 4360, 4432, 5540, 6104, 7630, 7756, 8720, 9695, 11080, 12208, 15260, 15512, 19390, 22160, 30193, 30520, 31024, 38780, 60386, 61040, 77560, 120772, 150965, 155120, 211351, 241544, 301930, 422702, 483088, 603860, 845404, 1056755, 1207720, 1690808, 2113510, 2415440, 3381616, 4227020, 8454040, 16908080]

約数ペア:

[(1, 16908080), (2, 8454040), (4, 4227020), (5, 3381616), (7, 2415440), (8, 2113510), (10, 1690808), (14, 1207720), (16, 1056755), (20, 845404), (28, 603860), (35, 483088), (40, 422702), (56, 301930), (70, 241544), (80, 211351), (109, 155120), (112, 150965), (140, 120772), (218, 77560), (277, 61040), (280, 60386), (436, 38780), (545, 31024), (554, 30520), (560, 30193), (763, 22160), (872, 19390), (1090, 15512), (1108, 15260), (1385, 12208), (1526, 11080), (1744, 9695), (1939, 8720), (2180, 7756), (2216, 7630), (2770, 6104), (3052, 5540), (3815, 4432), (3878, 4360)]