257788622

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{45691}}^1$

素因数の和:45744

約数の個数: 32

約数和(自身を含む): 491280384

約数和(自身を除く): 233491762

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 182, 217, 403, 434, 806, 2821, 5642, 45691, 91382, 319837, 593983, 639674, 1187966, 1416421, 2832842, 4157881, 8315762, 9914947, 18413473, 19829894, 36826946, 128894311, 257788622]

約数ペア:

[(1, 257788622), (2, 128894311), (7, 36826946), (13, 19829894), (14, 18413473), (26, 9914947), (31, 8315762), (62, 4157881), (91, 2832842), (182, 1416421), (217, 1187966), (403, 639674), (434, 593983), (806, 319837), (2821, 91382), (5642, 45691)]