221387904

素因数分解:

$2^7\times 3^4\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:320

約数の個数: 160

約数和(自身を含む): 667949040

約数和(自身を除く): 446561136

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 131, 144, 162, 163, 192, 216, 262, 288, 324, 326, 384, 393, 432, 489, 524, 576, 648, 652, 786, 864, 978, 1048, 1152, 1179, 1296, 1304, 1467, 1572, 1728, 1956, 2096, 2358, 2592, 2608, 2934, 3144, 3456, 3537, 3912, 4192, 4401, 4716, 5184, 5216, 5868, 6288, 7074, 7824, 8384, 8802, 9432, 10368, 10432, 10611, 11736, 12576, 13203, 14148, 15648, 16768, 17604, 18864, 20864, 21222, 21353, 23472, 25152, 26406, 28296, 31296, 35208, 37728, 42444, 42706, 46944, 50304, 52812, 56592, 62592, 64059, 70416, 75456, 84888, 85412, 93888, 105624, 113184, 128118, 140832, 150912, 169776, 170824, 187776, 192177, 211248, 226368, 256236, 281664, 339552, 341648, 384354, 422496, 452736, 512472, 563328, 576531, 679104, 683296, 768708, 844992, 1024944, 1153062, 1358208, 1366592, 1537416, 1689984, 1729593, 2049888, 2306124, 2733184, 3074832, 3459186, 4099776, 4612248, 6149664, 6918372, 8199552, 9224496, 12299328, 13836744, 18448992, 24598656, 27673488, 36897984, 55346976, 73795968, 110693952, 221387904]

約数ペア:

[(1, 221387904), (2, 110693952), (3, 73795968), (4, 55346976), (6, 36897984), (8, 27673488), (9, 24598656), (12, 18448992), (16, 13836744), (18, 12299328), (24, 9224496), (27, 8199552), (32, 6918372), (36, 6149664), (48, 4612248), (54, 4099776), (64, 3459186), (72, 3074832), (81, 2733184), (96, 2306124), (108, 2049888), (128, 1729593), (131, 1689984), (144, 1537416), (162, 1366592), (163, 1358208), (192, 1153062), (216, 1024944), (262, 844992), (288, 768708), (324, 683296), (326, 679104), (384, 576531), (393, 563328), (432, 512472), (489, 452736), (524, 422496), (576, 384354), (648, 341648), (652, 339552), (786, 281664), (864, 256236), (978, 226368), (1048, 211248), (1152, 192177), (1179, 187776), (1296, 170824), (1304, 169776), (1467, 150912), (1572, 140832), (1728, 128118), (1956, 113184), (2096, 105624), (2358, 93888), (2592, 85412), (2608, 84888), (2934, 75456), (3144, 70416), (3456, 64059), (3537, 62592), (3912, 56592), (4192, 52812), (4401, 50304), (4716, 46944), (5184, 42706), (5216, 42444), (5868, 37728), (6288, 35208), (7074, 31296), (7824, 28296), (8384, 26406), (8802, 25152), (9432, 23472), (10368, 21353), (10432, 21222), (10611, 20864), (11736, 18864), (12576, 17604), (13203, 16768), (14148, 15648)]