81640832

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 128

約数和(自身を含む): 206088960

約数和(自身を除く): 124448128

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 43, 52, 56, 64, 86, 91, 104, 112, 128, 163, 172, 182, 208, 224, 301, 326, 344, 364, 416, 448, 559, 602, 652, 688, 728, 832, 896, 1118, 1141, 1204, 1304, 1376, 1456, 1664, 2119, 2236, 2282, 2408, 2608, 2752, 2912, 3913, 4238, 4472, 4564, 4816, 5216, 5504, 5824, 7009, 7826, 8476, 8944, 9128, 9632, 10432, 11648, 14018, 14833, 15652, 16952, 17888, 18256, 19264, 20864, 28036, 29666, 31304, 33904, 35776, 36512, 38528, 49063, 56072, 59332, 62608, 67808, 71552, 73024, 91117, 98126, 112144, 118664, 125216, 135616, 146048, 182234, 196252, 224288, 237328, 250432, 271232, 364468, 392504, 448576, 474656, 500864, 637819, 728936, 785008, 897152, 949312, 1275638, 1457872, 1570016, 1898624, 2551276, 2915744, 3140032, 5102552, 5831488, 6280064, 10205104, 11662976, 20410208, 40820416, 81640832]

約数ペア:

[(1, 81640832), (2, 40820416), (4, 20410208), (7, 11662976), (8, 10205104), (13, 6280064), (14, 5831488), (16, 5102552), (26, 3140032), (28, 2915744), (32, 2551276), (43, 1898624), (52, 1570016), (56, 1457872), (64, 1275638), (86, 949312), (91, 897152), (104, 785008), (112, 728936), (128, 637819), (163, 500864), (172, 474656), (182, 448576), (208, 392504), (224, 364468), (301, 271232), (326, 250432), (344, 237328), (364, 224288), (416, 196252), (448, 182234), (559, 146048), (602, 135616), (652, 125216), (688, 118664), (728, 112144), (832, 98126), (896, 91117), (1118, 73024), (1141, 71552), (1204, 67808), (1304, 62608), (1376, 59332), (1456, 56072), (1664, 49063), (2119, 38528), (2236, 36512), (2282, 35776), (2408, 33904), (2608, 31304), (2752, 29666), (2912, 28036), (3913, 20864), (4238, 19264), (4472, 18256), (4564, 17888), (4816, 16952), (5216, 15652), (5504, 14833), (5824, 14018), (7009, 11648), (7826, 10432), (8476, 9632), (8944, 9128)]