31981264

素因数分解:

$2^4\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1009}}^1$

素因数の和:1307

約数の個数: 40

約数和(自身を含む): 71136320

約数和(自身を除く): 39155056

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 283, 566, 1009, 1132, 1981, 2018, 2264, 3962, 4036, 4528, 7063, 7924, 8072, 14126, 15848, 16144, 28252, 31696, 56504, 113008, 285547, 571094, 1142188, 1998829, 2284376, 3997658, 4568752, 7995316, 15990632, 31981264]

約数ペア:

[(1, 31981264), (2, 15990632), (4, 7995316), (7, 4568752), (8, 3997658), (14, 2284376), (16, 1998829), (28, 1142188), (56, 571094), (112, 285547), (283, 113008), (566, 56504), (1009, 31696), (1132, 28252), (1981, 16144), (2018, 15848), (2264, 14126), (3962, 8072), (4036, 7924), (4528, 7063)]