81038240

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3697}}^1$

素因数の和:3849

約数の個数: 48

約数和(自身を含む): 192902472

約数和(自身を除く): 111864232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 1096, 1370, 2192, 2740, 3697, 4384, 5480, 7394, 10960, 14788, 18485, 21920, 29576, 36970, 59152, 73940, 118304, 147880, 295760, 506489, 591520, 1012978, 2025956, 2532445, 4051912, 5064890, 8103824, 10129780, 16207648, 20259560, 40519120, 81038240]

約数ペア:

[(1, 81038240), (2, 40519120), (4, 20259560), (5, 16207648), (8, 10129780), (10, 8103824), (16, 5064890), (20, 4051912), (32, 2532445), (40, 2025956), (80, 1012978), (137, 591520), (160, 506489), (274, 295760), (548, 147880), (685, 118304), (1096, 73940), (1370, 59152), (2192, 36970), (2740, 29576), (3697, 21920), (4384, 18485), (5480, 14788), (7394, 10960)]