2557880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4919}}^1$

素因数の和:4943

約数の個数: 32

約数和(自身を含む): 6199200

約数和(自身を除く): 3641320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 4919, 9838, 19676, 24595, 39352, 49190, 63947, 98380, 127894, 196760, 255788, 319735, 511576, 639470, 1278940, 2557880]

約数ペア:

[(1, 2557880), (2, 1278940), (4, 639470), (5, 511576), (8, 319735), (10, 255788), (13, 196760), (20, 127894), (26, 98380), (40, 63947), (52, 49190), (65, 39352), (104, 24595), (130, 19676), (260, 9838), (520, 4919)]