80577920

素因数分解:

$2^7\times 5^1\times {\mathrm{137}}^1\times {\mathrm{919}}^1$

素因数の和:1075

約数の個数: 64

約数和(自身を含む): 194248800

約数和(自身を除く): 113670880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 274, 320, 548, 640, 685, 919, 1096, 1370, 1838, 2192, 2740, 3676, 4384, 4595, 5480, 7352, 8768, 9190, 10960, 14704, 17536, 18380, 21920, 29408, 36760, 43840, 58816, 73520, 87680, 117632, 125903, 147040, 251806, 294080, 503612, 588160, 629515, 1007224, 1259030, 2014448, 2518060, 4028896, 5036120, 8057792, 10072240, 16115584, 20144480, 40288960, 80577920]

約数ペア:

[(1, 80577920), (2, 40288960), (4, 20144480), (5, 16115584), (8, 10072240), (10, 8057792), (16, 5036120), (20, 4028896), (32, 2518060), (40, 2014448), (64, 1259030), (80, 1007224), (128, 629515), (137, 588160), (160, 503612), (274, 294080), (320, 251806), (548, 147040), (640, 125903), (685, 117632), (919, 87680), (1096, 73520), (1370, 58816), (1838, 43840), (2192, 36760), (2740, 29408), (3676, 21920), (4384, 18380), (4595, 17536), (5480, 14704), (7352, 10960), (8768, 9190)]