8720415

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 16773120

約数和(自身を除く): 8052705

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 79, 99, 165, 223, 237, 395, 495, 669, 711, 869, 1115, 1185, 2007, 2453, 2607, 3345, 3555, 4345, 7359, 7821, 10035, 12265, 13035, 17617, 22077, 36795, 39105, 52851, 88085, 110385, 158553, 193787, 264255, 581361, 792765, 968935, 1744083, 2906805, 8720415]

約数ペア:

[(1, 8720415), (3, 2906805), (5, 1744083), (9, 968935), (11, 792765), (15, 581361), (33, 264255), (45, 193787), (55, 158553), (79, 110385), (99, 88085), (165, 52851), (223, 39105), (237, 36795), (395, 22077), (495, 17617), (669, 13035), (711, 12265), (869, 10035), (1115, 7821), (1185, 7359), (2007, 4345), (2453, 3555), (2607, 3345)]