1991198404

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1033}}^1\times {\mathrm{1951}}^1$

素因数の和:3020

約数の個数: 48

約数和(自身を含む): 3956001280

約数和(自身を除く): 1964802876

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 1033, 1951, 2066, 3902, 4132, 7804, 13429, 19627, 25363, 26858, 37069, 39254, 50726, 53716, 74138, 78508, 101452, 148276, 255151, 481897, 510302, 963794, 1020604, 1927588, 2015383, 4030766, 8061532, 26199979, 38292277, 52399958, 76584554, 104799916, 153169108, 497799601, 995599202, 1991198404]

約数ペア:

[(1, 1991198404), (2, 995599202), (4, 497799601), (13, 153169108), (19, 104799916), (26, 76584554), (38, 52399958), (52, 38292277), (76, 26199979), (247, 8061532), (494, 4030766), (988, 2015383), (1033, 1927588), (1951, 1020604), (2066, 963794), (3902, 510302), (4132, 481897), (7804, 255151), (13429, 148276), (19627, 101452), (25363, 78508), (26858, 74138), (37069, 53716), (39254, 50726)]