1288892660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{65827}}^1$

素因数の和:65936

約数の個数: 48

約数和(自身を含む): 2985958080

約数和(自身を除く): 1697065420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 890, 979, 1780, 1958, 3916, 4895, 9790, 19580, 65827, 131654, 263308, 329135, 658270, 724097, 1316540, 1448194, 2896388, 3620485, 5858603, 7240970, 11717206, 14481940, 23434412, 29293015, 58586030, 64444633, 117172060, 128889266, 257778532, 322223165, 644446330, 1288892660]

約数ペア:

[(1, 1288892660), (2, 644446330), (4, 322223165), (5, 257778532), (10, 128889266), (11, 117172060), (20, 64444633), (22, 58586030), (44, 29293015), (55, 23434412), (89, 14481940), (110, 11717206), (178, 7240970), (220, 5858603), (356, 3620485), (445, 2896388), (890, 1448194), (979, 1316540), (1780, 724097), (1958, 658270), (3916, 329135), (4895, 263308), (9790, 131654), (19580, 65827)]