253796504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{78721}}^1$

素因数の和:78771

約数の個数: 32

約数和(自身を含む): 529011840

約数和(自身を除く): 275215336

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 78721, 157442, 314884, 629768, 1023373, 2046746, 2440351, 4093492, 4880702, 8186984, 9761404, 19522808, 31724563, 63449126, 126898252, 253796504]

約数ペア:

[(1, 253796504), (2, 126898252), (4, 63449126), (8, 31724563), (13, 19522808), (26, 9761404), (31, 8186984), (52, 4880702), (62, 4093492), (104, 2440351), (124, 2046746), (248, 1023373), (403, 629768), (806, 314884), (1612, 157442), (3224, 78721)]