1899260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 4445280

約数和(自身を除く): 2546020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 97, 110, 178, 194, 220, 356, 388, 445, 485, 890, 970, 979, 1067, 1780, 1940, 1958, 2134, 3916, 4268, 4895, 5335, 8633, 9790, 10670, 17266, 19580, 21340, 34532, 43165, 86330, 94963, 172660, 189926, 379852, 474815, 949630, 1899260]

約数ペア:

[(1, 1899260), (2, 949630), (4, 474815), (5, 379852), (10, 189926), (11, 172660), (20, 94963), (22, 86330), (44, 43165), (55, 34532), (89, 21340), (97, 19580), (110, 17266), (178, 10670), (194, 9790), (220, 8633), (356, 5335), (388, 4895), (445, 4268), (485, 3916), (890, 2134), (970, 1958), (979, 1940), (1067, 1780)]