8177715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 48

約数和(自身を含む): 17454528

約数和(自身を除く): 9276813

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 1997, 4095, 5991, 9985, 13979, 17973, 25961, 29955, 41937, 69895, 77883, 89865, 125811, 129805, 181727, 209685, 233649, 389415, 545181, 629055, 908635, 1168245, 1635543, 2725905, 8177715]

約数ペア:

[(1, 8177715), (3, 2725905), (5, 1635543), (7, 1168245), (9, 908635), (13, 629055), (15, 545181), (21, 389415), (35, 233649), (39, 209685), (45, 181727), (63, 129805), (65, 125811), (91, 89865), (105, 77883), (117, 69895), (195, 41937), (273, 29955), (315, 25961), (455, 17973), (585, 13979), (819, 9985), (1365, 5991), (1997, 4095)]