81181885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 107557632

約数和(自身を除く): 26375747

約数列:

[1, 5, 17, 37, 83, 85, 185, 311, 415, 629, 1411, 1555, 3071, 3145, 5287, 7055, 11507, 15355, 25813, 26435, 52207, 57535, 129065, 195619, 261035, 438821, 955081, 978095, 2194105, 4775405, 16236377, 81181885]

約数ペア:

[(1, 81181885), (5, 16236377), (17, 4775405), (37, 2194105), (83, 978095), (85, 955081), (185, 438821), (311, 261035), (415, 195619), (629, 129065), (1411, 57535), (1555, 52207), (3071, 26435), (3145, 25813), (5287, 15355), (7055, 11507)]