20360655

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{593}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 40772160

約数和(自身を除く): 20411505

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 109, 315, 327, 545, 593, 763, 981, 1635, 1779, 2289, 2965, 3815, 4151, 4905, 5337, 6867, 8895, 11445, 12453, 20755, 26685, 34335, 37359, 62265, 64637, 186795, 193911, 323185, 452459, 581733, 969555, 1357377, 2262295, 2908665, 4072131, 6786885, 20360655]

約数ペア:

[(1, 20360655), (3, 6786885), (5, 4072131), (7, 2908665), (9, 2262295), (15, 1357377), (21, 969555), (35, 581733), (45, 452459), (63, 323185), (105, 193911), (109, 186795), (315, 64637), (327, 62265), (545, 37359), (593, 34335), (763, 26685), (981, 20755), (1635, 12453), (1779, 11445), (2289, 8895), (2965, 6867), (3815, 5337), (4151, 4905)]