81756416

素因数分解:

$2^8\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1061}}^1$

素因数の和:1127

約数の個数: 72

約数和(自身を含む): 191024064

約数和(自身を除く): 109267648

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 128, 172, 224, 256, 301, 344, 448, 602, 688, 896, 1061, 1204, 1376, 1792, 2122, 2408, 2752, 4244, 4816, 5504, 7427, 8488, 9632, 11008, 14854, 16976, 19264, 29708, 33952, 38528, 45623, 59416, 67904, 77056, 91246, 118832, 135808, 182492, 237664, 271616, 319361, 364984, 475328, 638722, 729968, 950656, 1277444, 1459936, 1901312, 2554888, 2919872, 5109776, 5839744, 10219552, 11679488, 20439104, 40878208, 81756416]

約数ペア:

[(1, 81756416), (2, 40878208), (4, 20439104), (7, 11679488), (8, 10219552), (14, 5839744), (16, 5109776), (28, 2919872), (32, 2554888), (43, 1901312), (56, 1459936), (64, 1277444), (86, 950656), (112, 729968), (128, 638722), (172, 475328), (224, 364984), (256, 319361), (301, 271616), (344, 237664), (448, 182492), (602, 135808), (688, 118832), (896, 91246), (1061, 77056), (1204, 67904), (1376, 59416), (1792, 45623), (2122, 38528), (2408, 33952), (2752, 29708), (4244, 19264), (4816, 16976), (5504, 14854), (7427, 11008), (8488, 9632)]