638867072

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{887}}^1$

素因数の和:1249

約数の個数: 64

約数和(自身を含む): 1353205440

約数和(自身を除く): 714338368

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 272, 331, 544, 662, 887, 1088, 1324, 1774, 2176, 2648, 3548, 5296, 5627, 7096, 10592, 11254, 14192, 15079, 21184, 22508, 28384, 30158, 42368, 45016, 56768, 60316, 90032, 113536, 120632, 180064, 241264, 293597, 360128, 482528, 587194, 720256, 965056, 1174388, 1930112, 2348776, 4697552, 4991149, 9395104, 9982298, 18790208, 19964596, 37580416, 39929192, 79858384, 159716768, 319433536, 638867072]

約数ペア:

[(1, 638867072), (2, 319433536), (4, 159716768), (8, 79858384), (16, 39929192), (17, 37580416), (32, 19964596), (34, 18790208), (64, 9982298), (68, 9395104), (128, 4991149), (136, 4697552), (272, 2348776), (331, 1930112), (544, 1174388), (662, 965056), (887, 720256), (1088, 587194), (1324, 482528), (1774, 360128), (2176, 293597), (2648, 241264), (3548, 180064), (5296, 120632), (5627, 113536), (7096, 90032), (10592, 60316), (11254, 56768), (14192, 45016), (15079, 42368), (21184, 30158), (22508, 28384)]