18472240

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{991}}^1$

素因数の和:1237

約数の個数: 40

約数和(自身を含む): 43175808

約数和(自身を除く): 24703568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 932, 991, 1165, 1864, 1982, 2330, 3728, 3964, 4660, 4955, 7928, 9320, 9910, 15856, 18640, 19820, 39640, 79280, 230903, 461806, 923612, 1154515, 1847224, 2309030, 3694448, 4618060, 9236120, 18472240]

約数ペア:

[(1, 18472240), (2, 9236120), (4, 4618060), (5, 3694448), (8, 2309030), (10, 1847224), (16, 1154515), (20, 923612), (40, 461806), (80, 230903), (233, 79280), (466, 39640), (932, 19820), (991, 18640), (1165, 15856), (1864, 9910), (1982, 9320), (2330, 7928), (3728, 4955), (3964, 4660)]