221209856

素因数分解:

$2^8\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 544521600

約数和(自身を除く): 323311744

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 73, 76, 89, 112, 128, 133, 146, 152, 178, 224, 256, 266, 292, 304, 356, 448, 511, 532, 584, 608, 623, 712, 896, 1022, 1064, 1168, 1216, 1246, 1387, 1424, 1691, 1792, 2044, 2128, 2336, 2432, 2492, 2774, 2848, 3382, 4088, 4256, 4672, 4864, 4984, 5548, 5696, 6497, 6764, 8176, 8512, 9344, 9709, 9968, 11096, 11392, 11837, 12994, 13528, 16352, 17024, 18688, 19418, 19936, 22192, 22784, 23674, 25988, 27056, 32704, 34048, 38836, 39872, 44384, 45479, 47348, 51976, 54112, 65408, 77672, 79744, 88768, 90958, 94696, 103952, 108224, 123443, 130816, 155344, 159488, 177536, 181916, 189392, 207904, 216448, 246886, 310688, 355072, 363832, 378784, 415808, 432896, 493772, 621376, 727664, 757568, 831616, 864101, 987544, 1242752, 1455328, 1515136, 1663232, 1728202, 1975088, 2485504, 2910656, 3030272, 3456404, 3950176, 5821312, 6912808, 7900352, 11642624, 13825616, 15800704, 27651232, 31601408, 55302464, 110604928, 221209856]

約数ペア:

[(1, 221209856), (2, 110604928), (4, 55302464), (7, 31601408), (8, 27651232), (14, 15800704), (16, 13825616), (19, 11642624), (28, 7900352), (32, 6912808), (38, 5821312), (56, 3950176), (64, 3456404), (73, 3030272), (76, 2910656), (89, 2485504), (112, 1975088), (128, 1728202), (133, 1663232), (146, 1515136), (152, 1455328), (178, 1242752), (224, 987544), (256, 864101), (266, 831616), (292, 757568), (304, 727664), (356, 621376), (448, 493772), (511, 432896), (532, 415808), (584, 378784), (608, 363832), (623, 355072), (712, 310688), (896, 246886), (1022, 216448), (1064, 207904), (1168, 189392), (1216, 181916), (1246, 177536), (1387, 159488), (1424, 155344), (1691, 130816), (1792, 123443), (2044, 108224), (2128, 103952), (2336, 94696), (2432, 90958), (2492, 88768), (2774, 79744), (2848, 77672), (3382, 65408), (4088, 54112), (4256, 51976), (4672, 47348), (4864, 45479), (4984, 44384), (5548, 39872), (5696, 38836), (6497, 34048), (6764, 32704), (8176, 27056), (8512, 25988), (9344, 23674), (9709, 22784), (9968, 22192), (11096, 19936), (11392, 19418), (11837, 18688), (12994, 17024), (13528, 16352)]