31771575

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^2\times {\mathrm{389}}^1$

素因数の和:430

約数の個数: 72

約数和(自身を含む): 64318800

約数和(自身を除く): 32547225

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 121, 135, 165, 225, 275, 297, 363, 389, 495, 605, 675, 825, 1089, 1167, 1485, 1815, 1945, 2475, 3025, 3267, 3501, 4279, 5445, 5835, 7425, 9075, 9725, 10503, 12837, 16335, 17505, 21395, 27225, 29175, 38511, 47069, 52515, 64185, 81675, 87525, 106975, 115533, 141207, 192555, 235345, 262575, 320925, 423621, 577665, 706035, 962775, 1176725, 1270863, 2118105, 2888325, 3530175, 6354315, 10590525, 31771575]

約数ペア:

[(1, 31771575), (3, 10590525), (5, 6354315), (9, 3530175), (11, 2888325), (15, 2118105), (25, 1270863), (27, 1176725), (33, 962775), (45, 706035), (55, 577665), (75, 423621), (99, 320925), (121, 262575), (135, 235345), (165, 192555), (225, 141207), (275, 115533), (297, 106975), (363, 87525), (389, 81675), (495, 64185), (605, 52515), (675, 47069), (825, 38511), (1089, 29175), (1167, 27225), (1485, 21395), (1815, 17505), (1945, 16335), (2475, 12837), (3025, 10503), (3267, 9725), (3501, 9075), (4279, 7425), (5445, 5835)]