51405380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197713}}^1$

素因数の和:197735

約数の個数: 24

約数和(自身を含む): 116255832

約数和(自身を除く): 64850452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197713, 395426, 790852, 988565, 1977130, 2570269, 3954260, 5140538, 10281076, 12851345, 25702690, 51405380]

約数ペア:

[(1, 51405380), (2, 25702690), (4, 12851345), (5, 10281076), (10, 5140538), (13, 3954260), (20, 2570269), (26, 1977130), (52, 988565), (65, 790852), (130, 395426), (260, 197713)]