289686545

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 376164000

約数和(自身を除く): 86477455

約数列:

[1, 5, 17, 85, 89, 149, 257, 445, 745, 1285, 1513, 2533, 4369, 7565, 12665, 13261, 21845, 22873, 38293, 66305, 114365, 191465, 225437, 388841, 650981, 1127185, 1944205, 3254905, 3408077, 17040385, 57937309, 289686545]

約数ペア:

[(1, 289686545), (5, 57937309), (17, 17040385), (85, 3408077), (89, 3254905), (149, 1944205), (257, 1127185), (445, 650981), (745, 388841), (1285, 225437), (1513, 191465), (2533, 114365), (4369, 66305), (7565, 38293), (12665, 22873), (13261, 21845)]