257488

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1$

素因数の和:56

約数の個数: 60

約数和(自身を含む): 659680

約数和(自身を除く): 402192

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 121, 133, 152, 154, 176, 209, 242, 266, 304, 308, 418, 484, 532, 616, 836, 847, 968, 1064, 1232, 1463, 1672, 1694, 1936, 2128, 2299, 2926, 3344, 3388, 4598, 5852, 6776, 9196, 11704, 13552, 16093, 18392, 23408, 32186, 36784, 64372, 128744, 257488]

約数ペア:

[(1, 257488), (2, 128744), (4, 64372), (7, 36784), (8, 32186), (11, 23408), (14, 18392), (16, 16093), (19, 13552), (22, 11704), (28, 9196), (38, 6776), (44, 5852), (56, 4598), (76, 3388), (77, 3344), (88, 2926), (112, 2299), (121, 2128), (133, 1936), (152, 1694), (154, 1672), (176, 1463), (209, 1232), (242, 1064), (266, 968), (304, 847), (308, 836), (418, 616), (484, 532)]