19680105

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 33408000

約数和(自身を除く): 13727895

約数列:

[1, 3, 5, 15, 19, 57, 95, 199, 285, 347, 597, 995, 1041, 1735, 2985, 3781, 5205, 6593, 11343, 18905, 19779, 32965, 56715, 69053, 98895, 207159, 345265, 1035795, 1312007, 3936021, 6560035, 19680105]

約数ペア:

[(1, 19680105), (3, 6560035), (5, 3936021), (15, 1312007), (19, 1035795), (57, 345265), (95, 207159), (199, 98895), (285, 69053), (347, 56715), (597, 32965), (995, 19779), (1041, 18905), (1735, 11343), (2985, 6593), (3781, 5205)]