31620155

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 45293568

約数和(自身を除く): 13673413

約数列:

[1, 5, 7, 31, 35, 151, 155, 193, 217, 755, 965, 1057, 1085, 1351, 4681, 5285, 5983, 6755, 23405, 29143, 29915, 32767, 41881, 145715, 163835, 204001, 209405, 903433, 1020005, 4517165, 6324031, 31620155]

約数ペア:

[(1, 31620155), (5, 6324031), (7, 4517165), (31, 1020005), (35, 903433), (151, 209405), (155, 204001), (193, 163835), (217, 145715), (755, 41881), (965, 32767), (1057, 29915), (1085, 29143), (1351, 23405), (4681, 6755), (5285, 5983)]