257242310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{15581}}^1$

素因数の和:15728

約数の個数: 32

約数和(自身を含む): 502612992

約数和(自身を除く): 245370682

約数列:

[1, 2, 5, 10, 13, 26, 65, 127, 130, 254, 635, 1270, 1651, 3302, 8255, 15581, 16510, 31162, 77905, 155810, 202553, 405106, 1012765, 1978787, 2025530, 3957574, 9893935, 19787870, 25724231, 51448462, 128621155, 257242310]

約数ペア:

[(1, 257242310), (2, 128621155), (5, 51448462), (10, 25724231), (13, 19787870), (26, 9893935), (65, 3957574), (127, 2025530), (130, 1978787), (254, 1012765), (635, 405106), (1270, 202553), (1651, 155810), (3302, 77905), (8255, 31162), (15581, 16510)]