201018070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{20533}}^1$

素因数の和:20640

約数の個数: 32

約数和(自身を含む): 399180960

約数和(自身を除く): 198162890

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 4895, 9790, 20533, 41066, 102665, 205330, 225863, 451726, 1129315, 1827437, 2258630, 3654874, 9137185, 18274370, 20101807, 40203614, 100509035, 201018070]

約数ペア:

[(1, 201018070), (2, 100509035), (5, 40203614), (10, 20101807), (11, 18274370), (22, 9137185), (55, 3654874), (89, 2258630), (110, 1827437), (178, 1129315), (445, 451726), (890, 225863), (979, 205330), (1958, 102665), (4895, 41066), (9790, 20533)]