1291208672

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{238759}}^1$

素因数の和:238795

約数の個数: 36

約数和(自身を含む): 2752664040

約数和(自身を除く): 1461455368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 5408, 238759, 477518, 955036, 1910072, 3103867, 3820144, 6207734, 7640288, 12415468, 24830936, 40350271, 49661872, 80700542, 99323744, 161401084, 322802168, 645604336, 1291208672]

約数ペア:

[(1, 1291208672), (2, 645604336), (4, 322802168), (8, 161401084), (13, 99323744), (16, 80700542), (26, 49661872), (32, 40350271), (52, 24830936), (104, 12415468), (169, 7640288), (208, 6207734), (338, 3820144), (416, 3103867), (676, 1910072), (1352, 955036), (2704, 477518), (5408, 238759)]