2660320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1279}}^1$

素因数の和:1307

約数の個数: 48

約数和(自身を含む): 6773760

約数和(自身を除く): 4113440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1279, 2080, 2558, 5116, 6395, 10232, 12790, 16627, 20464, 25580, 33254, 40928, 51160, 66508, 83135, 102320, 133016, 166270, 204640, 266032, 332540, 532064, 665080, 1330160, 2660320]

約数ペア:

[(1, 2660320), (2, 1330160), (4, 665080), (5, 532064), (8, 332540), (10, 266032), (13, 204640), (16, 166270), (20, 133016), (26, 102320), (32, 83135), (40, 66508), (52, 51160), (65, 40928), (80, 33254), (104, 25580), (130, 20464), (160, 16627), (208, 12790), (260, 10232), (416, 6395), (520, 5116), (1040, 2558), (1279, 2080)]