81140416

素因数分解:

$2^6\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1303}}^1$

素因数の和:1461

約数の個数: 56

約数和(自身を含む): 185480960

約数和(自身を除く): 104340544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 139, 224, 278, 448, 556, 973, 1112, 1303, 1946, 2224, 2606, 3892, 4448, 5212, 7784, 8896, 9121, 10424, 15568, 18242, 20848, 31136, 36484, 41696, 62272, 72968, 83392, 145936, 181117, 291872, 362234, 583744, 724468, 1267819, 1448936, 2535638, 2897872, 5071276, 5795744, 10142552, 11591488, 20285104, 40570208, 81140416]

約数ペア:

[(1, 81140416), (2, 40570208), (4, 20285104), (7, 11591488), (8, 10142552), (14, 5795744), (16, 5071276), (28, 2897872), (32, 2535638), (56, 1448936), (64, 1267819), (112, 724468), (139, 583744), (224, 362234), (278, 291872), (448, 181117), (556, 145936), (973, 83392), (1112, 72968), (1303, 62272), (1946, 41696), (2224, 36484), (2606, 31136), (3892, 20848), (4448, 18242), (5212, 15568), (7784, 10424), (8896, 9121)]