20496160

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2417}}^1$

素因数の和:2485

約数の個数: 48

約数和(自身を含む): 49356216

約数和(自身を除く): 28860056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2417, 4240, 4834, 8480, 9668, 12085, 19336, 24170, 38672, 48340, 77344, 96680, 128101, 193360, 256202, 386720, 512404, 640505, 1024808, 1281010, 2049616, 2562020, 4099232, 5124040, 10248080, 20496160]

約数ペア:

[(1, 20496160), (2, 10248080), (4, 5124040), (5, 4099232), (8, 2562020), (10, 2049616), (16, 1281010), (20, 1024808), (32, 640505), (40, 512404), (53, 386720), (80, 256202), (106, 193360), (160, 128101), (212, 96680), (265, 77344), (424, 48340), (530, 38672), (848, 24170), (1060, 19336), (1696, 12085), (2120, 9668), (2417, 8480), (4240, 4834)]