81925376

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{239}}^1$

素因数の和:371

約数の個数: 72

約数和(自身を含む): 178563840

約数和(自身を除く): 96638464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 103, 104, 128, 206, 208, 239, 256, 412, 416, 478, 824, 832, 956, 1339, 1648, 1664, 1912, 2678, 3107, 3296, 3328, 3824, 5356, 6214, 6592, 7648, 10712, 12428, 13184, 15296, 21424, 24617, 24856, 26368, 30592, 42848, 49234, 49712, 61184, 85696, 98468, 99424, 171392, 196936, 198848, 320021, 342784, 393872, 397696, 640042, 787744, 795392, 1280084, 1575488, 2560168, 3150976, 5120336, 6301952, 10240672, 20481344, 40962688, 81925376]

約数ペア:

[(1, 81925376), (2, 40962688), (4, 20481344), (8, 10240672), (13, 6301952), (16, 5120336), (26, 3150976), (32, 2560168), (52, 1575488), (64, 1280084), (103, 795392), (104, 787744), (128, 640042), (206, 397696), (208, 393872), (239, 342784), (256, 320021), (412, 198848), (416, 196936), (478, 171392), (824, 99424), (832, 98468), (956, 85696), (1339, 61184), (1648, 49712), (1664, 49234), (1912, 42848), (2678, 30592), (3107, 26368), (3296, 24856), (3328, 24617), (3824, 21424), (5356, 15296), (6214, 13184), (6592, 12428), (7648, 10712)]