256217856

素因数分解:

$2^8\times 3^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 714255360

約数和(自身を除く): 458037504

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 41, 48, 64, 79, 82, 96, 103, 123, 128, 158, 164, 192, 206, 237, 246, 256, 309, 316, 328, 384, 412, 474, 492, 618, 632, 656, 768, 824, 948, 984, 1236, 1264, 1312, 1648, 1896, 1968, 2472, 2528, 2624, 3239, 3296, 3792, 3936, 4223, 4944, 5056, 5248, 6478, 6592, 7584, 7872, 8137, 8446, 9717, 9888, 10112, 10496, 12669, 12956, 13184, 15168, 15744, 16274, 16892, 19434, 19776, 20224, 24411, 25338, 25912, 26368, 30336, 31488, 32548, 33784, 38868, 39552, 48822, 50676, 51824, 60672, 65096, 67568, 77736, 79104, 97644, 101352, 103648, 130192, 135136, 155472, 195288, 202704, 207296, 260384, 270272, 310944, 333617, 390576, 405408, 414592, 520768, 540544, 621888, 667234, 781152, 810816, 829184, 1000851, 1041536, 1081088, 1243776, 1334468, 1562304, 1621632, 2001702, 2083072, 2487552, 2668936, 3124608, 3243264, 4003404, 5337872, 6249216, 8006808, 10675744, 16013616, 21351488, 32027232, 42702976, 64054464, 85405952, 128108928, 256217856]

約数ペア:

[(1, 256217856), (2, 128108928), (3, 85405952), (4, 64054464), (6, 42702976), (8, 32027232), (12, 21351488), (16, 16013616), (24, 10675744), (32, 8006808), (41, 6249216), (48, 5337872), (64, 4003404), (79, 3243264), (82, 3124608), (96, 2668936), (103, 2487552), (123, 2083072), (128, 2001702), (158, 1621632), (164, 1562304), (192, 1334468), (206, 1243776), (237, 1081088), (246, 1041536), (256, 1000851), (309, 829184), (316, 810816), (328, 781152), (384, 667234), (412, 621888), (474, 540544), (492, 520768), (618, 414592), (632, 405408), (656, 390576), (768, 333617), (824, 310944), (948, 270272), (984, 260384), (1236, 207296), (1264, 202704), (1312, 195288), (1648, 155472), (1896, 135136), (1968, 130192), (2472, 103648), (2528, 101352), (2624, 97644), (3239, 79104), (3296, 77736), (3792, 67568), (3936, 65096), (4223, 60672), (4944, 51824), (5056, 50676), (5248, 48822), (6478, 39552), (6592, 38868), (7584, 33784), (7872, 32548), (8137, 31488), (8446, 30336), (9717, 26368), (9888, 25912), (10112, 25338), (10496, 24411), (12669, 20224), (12956, 19776), (13184, 19434), (15168, 16892), (15744, 16274)]