81142208

素因数分解:

$2^6\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2641

約数の個数: 56

約数和(自身を含む): 186683904

約数和(自身を除く): 105541696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 142, 224, 284, 448, 497, 568, 994, 1136, 1988, 2272, 2551, 3976, 4544, 5102, 7952, 10204, 15904, 17857, 20408, 31808, 35714, 40816, 71428, 81632, 142856, 163264, 181121, 285712, 362242, 571424, 724484, 1142848, 1267847, 1448968, 2535694, 2897936, 5071388, 5795872, 10142776, 11591744, 20285552, 40571104, 81142208]

約数ペア:

[(1, 81142208), (2, 40571104), (4, 20285552), (7, 11591744), (8, 10142776), (14, 5795872), (16, 5071388), (28, 2897936), (32, 2535694), (56, 1448968), (64, 1267847), (71, 1142848), (112, 724484), (142, 571424), (224, 362242), (284, 285712), (448, 181121), (497, 163264), (568, 142856), (994, 81632), (1136, 71428), (1988, 40816), (2272, 35714), (2551, 31808), (3976, 20408), (4544, 17857), (5102, 15904), (7952, 10204)]