31028478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2216

約数の個数: 32

約数和(自身を含む): 67200000

約数和(自身を除く): 36171522

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 199, 398, 597, 1194, 1999, 2587, 3998, 5174, 5997, 7761, 11994, 15522, 25987, 51974, 77961, 155922, 397801, 795602, 1193403, 2386806, 5171413, 10342826, 15514239, 31028478]

約数ペア:

[(1, 31028478), (2, 15514239), (3, 10342826), (6, 5171413), (13, 2386806), (26, 1193403), (39, 795602), (78, 397801), (199, 155922), (398, 77961), (597, 51974), (1194, 25987), (1999, 15522), (2587, 11994), (3998, 7761), (5174, 5997)]