257770552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{57641}}^1$

素因数の和:57703

約数の個数: 32

約数和(自身を含む): 532612080

約数和(自身を除く): 274841528

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 57641, 115282, 230564, 461128, 749333, 1498666, 2478563, 2997332, 4957126, 5994664, 9914252, 19828504, 32221319, 64442638, 128885276, 257770552]

約数ペア:

[(1, 257770552), (2, 128885276), (4, 64442638), (8, 32221319), (13, 19828504), (26, 9914252), (43, 5994664), (52, 4957126), (86, 2997332), (104, 2478563), (172, 1498666), (344, 749333), (559, 461128), (1118, 230564), (2236, 115282), (4472, 57641)]