81531296

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:227

約数の個数: 144

約数和(自身を含む): 212012640

約数和(自身を除く): 130481344

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 29, 32, 44, 49, 56, 58, 77, 88, 98, 112, 116, 154, 163, 176, 196, 203, 224, 232, 308, 319, 326, 352, 392, 406, 464, 539, 616, 638, 652, 784, 812, 928, 1078, 1141, 1232, 1276, 1304, 1421, 1568, 1624, 1793, 2156, 2233, 2282, 2464, 2552, 2608, 2842, 3248, 3586, 4312, 4466, 4564, 4727, 5104, 5216, 5684, 6496, 7172, 7987, 8624, 8932, 9128, 9454, 10208, 11368, 12551, 14344, 15631, 15974, 17248, 17864, 18256, 18908, 22736, 25102, 28688, 31262, 31948, 33089, 35728, 36512, 37816, 45472, 50204, 51997, 57376, 62524, 63896, 66178, 71456, 75632, 87857, 100408, 103994, 125048, 127792, 132356, 151264, 175714, 200816, 207988, 231623, 250096, 255584, 264712, 351428, 363979, 401632, 415976, 463246, 500192, 529424, 702856, 727958, 831952, 926492, 1058848, 1405712, 1455916, 1663904, 1852984, 2547853, 2811424, 2911832, 3705968, 5095706, 5823664, 7411936, 10191412, 11647328, 20382824, 40765648, 81531296]

約数ペア:

[(1, 81531296), (2, 40765648), (4, 20382824), (7, 11647328), (8, 10191412), (11, 7411936), (14, 5823664), (16, 5095706), (22, 3705968), (28, 2911832), (29, 2811424), (32, 2547853), (44, 1852984), (49, 1663904), (56, 1455916), (58, 1405712), (77, 1058848), (88, 926492), (98, 831952), (112, 727958), (116, 702856), (154, 529424), (163, 500192), (176, 463246), (196, 415976), (203, 401632), (224, 363979), (232, 351428), (308, 264712), (319, 255584), (326, 250096), (352, 231623), (392, 207988), (406, 200816), (464, 175714), (539, 151264), (616, 132356), (638, 127792), (652, 125048), (784, 103994), (812, 100408), (928, 87857), (1078, 75632), (1141, 71456), (1232, 66178), (1276, 63896), (1304, 62524), (1421, 57376), (1568, 51997), (1624, 50204), (1793, 45472), (2156, 37816), (2233, 36512), (2282, 35728), (2464, 33089), (2552, 31948), (2608, 31262), (2842, 28688), (3248, 25102), (3586, 22736), (4312, 18908), (4466, 18256), (4564, 17864), (4727, 17248), (5104, 15974), (5216, 15631), (5684, 14344), (6496, 12551), (7172, 11368), (7987, 10208), (8624, 9454), (8932, 9128)]