687695385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1\times {\mathrm{4003}}^1$

素因数の和:4905

約数の個数: 32

約数和(自身を含む): 1186593408

約数和(自身を除く): 498898023

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 881, 2643, 4003, 4405, 11453, 12009, 13215, 20015, 34359, 52039, 57265, 60045, 156117, 171795, 260195, 780585, 3526643, 10579929, 17633215, 45846359, 52899645, 137539077, 229231795, 687695385]

約数ペア:

[(1, 687695385), (3, 229231795), (5, 137539077), (13, 52899645), (15, 45846359), (39, 17633215), (65, 10579929), (195, 3526643), (881, 780585), (2643, 260195), (4003, 171795), (4405, 156117), (11453, 60045), (12009, 57265), (13215, 52039), (20015, 34359)]