9985005

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2050

約数の個数: 32

約数和(自身を含む): 18240000

約数和(自身を除く): 8254995

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 1999, 4995, 5997, 9995, 17991, 29985, 53973, 73963, 89955, 221889, 269865, 369815, 665667, 1109445, 1997001, 3328335, 9985005]

約数ペア:

[(1, 9985005), (3, 3328335), (5, 1997001), (9, 1109445), (15, 665667), (27, 369815), (37, 269865), (45, 221889), (111, 89955), (135, 73963), (185, 53973), (333, 29985), (555, 17991), (999, 9995), (1665, 5997), (1999, 4995)]