20144480

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{919}}^1$

素因数の和:1071

約数の個数: 48

約数和(自身を含む): 47990880

約数和(自身を除く): 27846400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 919, 1096, 1370, 1838, 2192, 2740, 3676, 4384, 4595, 5480, 7352, 9190, 10960, 14704, 18380, 21920, 29408, 36760, 73520, 125903, 147040, 251806, 503612, 629515, 1007224, 1259030, 2014448, 2518060, 4028896, 5036120, 10072240, 20144480]

約数ペア:

[(1, 20144480), (2, 10072240), (4, 5036120), (5, 4028896), (8, 2518060), (10, 2014448), (16, 1259030), (20, 1007224), (32, 629515), (40, 503612), (80, 251806), (137, 147040), (160, 125903), (274, 73520), (548, 36760), (685, 29408), (919, 21920), (1096, 18380), (1370, 14704), (1838, 10960), (2192, 9190), (2740, 7352), (3676, 5480), (4384, 4595)]