31996215

素因数分解:

$3^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:613

約数の個数: 40

約数和(自身を含む): 57789600

約数和(自身を除く): 25793385

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 199, 397, 405, 597, 995, 1191, 1791, 1985, 2985, 3573, 5373, 5955, 8955, 10719, 16119, 17865, 26865, 32157, 53595, 79003, 80595, 160785, 237009, 395015, 711027, 1185045, 2133081, 3555135, 6399243, 10665405, 31996215]

約数ペア:

[(1, 31996215), (3, 10665405), (5, 6399243), (9, 3555135), (15, 2133081), (27, 1185045), (45, 711027), (81, 395015), (135, 237009), (199, 160785), (397, 80595), (405, 79003), (597, 53595), (995, 32157), (1191, 26865), (1791, 17865), (1985, 16119), (2985, 10719), (3573, 8955), (5373, 5955)]