81654828

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:718

約数の個数: 48

約数和(自身を含む): 194503680

約数和(自身を除く): 112848852

約数列:

[1, 2, 3, 4, 6, 12, 71, 142, 213, 239, 284, 401, 426, 478, 717, 802, 852, 956, 1203, 1434, 1604, 2406, 2868, 4812, 16969, 28471, 33938, 50907, 56942, 67876, 85413, 95839, 101814, 113884, 170826, 191678, 203628, 287517, 341652, 383356, 575034, 1150068, 6804569, 13609138, 20413707, 27218276, 40827414, 81654828]

約数ペア:

[(1, 81654828), (2, 40827414), (3, 27218276), (4, 20413707), (6, 13609138), (12, 6804569), (71, 1150068), (142, 575034), (213, 383356), (239, 341652), (284, 287517), (401, 203628), (426, 191678), (478, 170826), (717, 113884), (802, 101814), (852, 95839), (956, 85413), (1203, 67876), (1434, 56942), (1604, 50907), (2406, 33938), (2868, 28471), (4812, 16969)]