55420765

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 73560960

約数和(自身を除く): 18140195

約数列:

[1, 5, 17, 43, 59, 85, 215, 257, 295, 731, 1003, 1285, 2537, 3655, 4369, 5015, 11051, 12685, 15163, 21845, 43129, 55255, 75815, 187867, 215645, 257771, 652009, 939335, 1288855, 3260045, 11084153, 55420765]

約数ペア:

[(1, 55420765), (5, 11084153), (17, 3260045), (43, 1288855), (59, 939335), (85, 652009), (215, 257771), (257, 215645), (295, 187867), (731, 75815), (1003, 55255), (1285, 43129), (2537, 21845), (3655, 15163), (4369, 12685), (5015, 11051)]