1990486977

素因数分解:

$3^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 2723414400

約数和(自身を除く): 732927423

約数列:

[1, 3, 113, 149, 157, 251, 339, 447, 471, 753, 16837, 17741, 23393, 28363, 37399, 39407, 50511, 53223, 70179, 85089, 112197, 118221, 2643409, 4226087, 4452991, 5871643, 7930227, 12678261, 13358973, 17614929, 663495659, 1990486977]

約数ペア:

[(1, 1990486977), (3, 663495659), (113, 17614929), (149, 13358973), (157, 12678261), (251, 7930227), (339, 5871643), (447, 4452991), (471, 4226087), (753, 2643409), (16837, 118221), (17741, 112197), (23393, 85089), (28363, 70179), (37399, 53223), (39407, 50511)]