256299208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 597196800

約数和(自身を除く): 340897592

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 68, 71, 76, 88, 127, 136, 142, 152, 187, 209, 254, 284, 323, 374, 418, 508, 568, 646, 748, 781, 836, 1016, 1207, 1292, 1349, 1397, 1496, 1562, 1672, 2159, 2413, 2414, 2584, 2698, 2794, 3124, 3553, 4318, 4826, 4828, 5396, 5588, 6248, 7106, 8636, 9017, 9652, 9656, 10792, 11176, 13277, 14212, 14839, 17272, 18034, 19304, 22933, 23749, 26543, 26554, 28424, 29678, 36068, 41021, 45866, 47498, 53086, 53108, 59356, 72136, 82042, 91732, 94996, 99187, 106172, 106216, 118712, 153289, 164084, 171323, 183464, 189992, 198374, 212344, 252263, 306578, 328168, 342646, 396748, 451231, 504526, 613156, 685292, 793496, 902462, 1009052, 1226312, 1370584, 1686179, 1804924, 1884553, 2018104, 2912491, 3372358, 3609848, 3769106, 5824982, 6744716, 7538212, 11649964, 13489432, 15076424, 23299928, 32037401, 64074802, 128149604, 256299208]

約数ペア:

[(1, 256299208), (2, 128149604), (4, 64074802), (8, 32037401), (11, 23299928), (17, 15076424), (19, 13489432), (22, 11649964), (34, 7538212), (38, 6744716), (44, 5824982), (68, 3769106), (71, 3609848), (76, 3372358), (88, 2912491), (127, 2018104), (136, 1884553), (142, 1804924), (152, 1686179), (187, 1370584), (209, 1226312), (254, 1009052), (284, 902462), (323, 793496), (374, 685292), (418, 613156), (508, 504526), (568, 451231), (646, 396748), (748, 342646), (781, 328168), (836, 306578), (1016, 252263), (1207, 212344), (1292, 198374), (1349, 189992), (1397, 183464), (1496, 171323), (1562, 164084), (1672, 153289), (2159, 118712), (2413, 106216), (2414, 106172), (2584, 99187), (2698, 94996), (2794, 91732), (3124, 82042), (3553, 72136), (4318, 59356), (4826, 53108), (4828, 53086), (5396, 47498), (5588, 45866), (6248, 41021), (7106, 36068), (8636, 29678), (9017, 28424), (9652, 26554), (9656, 26543), (10792, 23749), (11176, 22933), (13277, 19304), (14212, 18034), (14839, 17272)]