1720485

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 3420144

約数和(自身を除く): 1699659

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 173, 195, 221, 255, 519, 585, 663, 765, 865, 1105, 1557, 1989, 2249, 2595, 2941, 3315, 6747, 7785, 8823, 9945, 11245, 14705, 20241, 26469, 33735, 38233, 44115, 101205, 114699, 132345, 191165, 344097, 573495, 1720485]

約数ペア:

[(1, 1720485), (3, 573495), (5, 344097), (9, 191165), (13, 132345), (15, 114699), (17, 101205), (39, 44115), (45, 38233), (51, 33735), (65, 26469), (85, 20241), (117, 14705), (153, 11245), (173, 9945), (195, 8823), (221, 7785), (255, 6747), (519, 3315), (585, 2941), (663, 2595), (765, 2249), (865, 1989), (1105, 1557)]