257504

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:642

約数の個数: 24

約数和(自身を含む): 546840

約数和(自身を除く): 289336

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 619, 1238, 2476, 4952, 8047, 9904, 16094, 19808, 32188, 64376, 128752, 257504]

約数ペア:

[(1, 257504), (2, 128752), (4, 64376), (8, 32188), (13, 19808), (16, 16094), (26, 9904), (32, 8047), (52, 4952), (104, 2476), (208, 1238), (416, 619)]