1638765

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 2976000

約数和(自身を除く): 1337235

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 199, 305, 549, 597, 915, 995, 1647, 1791, 2745, 2985, 5373, 8235, 8955, 12139, 26865, 36417, 60695, 109251, 182085, 327753, 546255, 1638765]

約数ペア:

[(1, 1638765), (3, 546255), (5, 327753), (9, 182085), (15, 109251), (27, 60695), (45, 36417), (61, 26865), (135, 12139), (183, 8955), (199, 8235), (305, 5373), (549, 2985), (597, 2745), (915, 1791), (995, 1647)]