18031870

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 33359040

約数和(自身を除く): 15327170

約数列:

[1, 2, 5, 10, 71, 109, 142, 218, 233, 355, 466, 545, 710, 1090, 1165, 2330, 7739, 15478, 16543, 25397, 33086, 38695, 50794, 77390, 82715, 126985, 165430, 253970, 1803187, 3606374, 9015935, 18031870]

約数ペア:

[(1, 18031870), (2, 9015935), (5, 3606374), (10, 1803187), (71, 253970), (109, 165430), (142, 126985), (218, 82715), (233, 77390), (355, 50794), (466, 38695), (545, 33086), (710, 25397), (1090, 16543), (1165, 15478), (2330, 7739)]