129801620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{3931}}^1$

素因数の和:4080

約数の個数: 48

約数和(自身を含む): 295938048

約数和(自身を除く): 166136428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 3302, 3931, 6604, 7862, 8255, 15724, 16510, 19655, 33020, 39310, 51103, 78620, 102206, 204412, 255515, 499237, 511030, 998474, 1022060, 1996948, 2496185, 4992370, 6490081, 9984740, 12980162, 25960324, 32450405, 64900810, 129801620]

約数ペア:

[(1, 129801620), (2, 64900810), (4, 32450405), (5, 25960324), (10, 12980162), (13, 9984740), (20, 6490081), (26, 4992370), (52, 2496185), (65, 1996948), (127, 1022060), (130, 998474), (254, 511030), (260, 499237), (508, 255515), (635, 204412), (1270, 102206), (1651, 78620), (2540, 51103), (3302, 39310), (3931, 33020), (6604, 19655), (7862, 16510), (8255, 15724)]