256856702984

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6263}}^1\times {\mathrm{6481}}^1$

素因数の和:12870

約数の個数: 64

約数和(自身を含む): 555452432640

約数和(自身を除く): 298595729656

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 6263, 6328, 6481, 12526, 12962, 25052, 25924, 43841, 45367, 50104, 51848, 87682, 90734, 175364, 181468, 350728, 362936, 707719, 732353, 1415438, 1464706, 2830876, 2929412, 4954033, 5126471, 5661752, 5858824, 9908066, 10252942, 19816132, 20505884, 39632264, 40590503, 41011768, 81181006, 162362012, 284133521, 324724024, 568267042, 1136534084, 2273068168, 4586726839, 9173453678, 18346907356, 32107087873, 36693814712, 64214175746, 128428351492, 256856702984]

約数ペア:

[(1, 256856702984), (2, 128428351492), (4, 64214175746), (7, 36693814712), (8, 32107087873), (14, 18346907356), (28, 9173453678), (56, 4586726839), (113, 2273068168), (226, 1136534084), (452, 568267042), (791, 324724024), (904, 284133521), (1582, 162362012), (3164, 81181006), (6263, 41011768), (6328, 40590503), (6481, 39632264), (12526, 20505884), (12962, 19816132), (25052, 10252942), (25924, 9908066), (43841, 5858824), (45367, 5661752), (50104, 5126471), (51848, 4954033), (87682, 2929412), (90734, 2830876), (175364, 1464706), (181468, 1415438), (350728, 732353), (362936, 707719)]