19714520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1$

素因数の和:588

約数の個数: 64

約数和(自身を含む): 51105600

約数和(自身を除く): 31391080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 389, 724, 778, 905, 1267, 1448, 1556, 1810, 1945, 2534, 2723, 3112, 3620, 3890, 5068, 5446, 6335, 7240, 7780, 10136, 10892, 12670, 13615, 15560, 21784, 25340, 27230, 50680, 54460, 70409, 108920, 140818, 281636, 352045, 492863, 563272, 704090, 985726, 1408180, 1971452, 2464315, 2816360, 3942904, 4928630, 9857260, 19714520]

約数ペア:

[(1, 19714520), (2, 9857260), (4, 4928630), (5, 3942904), (7, 2816360), (8, 2464315), (10, 1971452), (14, 1408180), (20, 985726), (28, 704090), (35, 563272), (40, 492863), (56, 352045), (70, 281636), (140, 140818), (181, 108920), (280, 70409), (362, 54460), (389, 50680), (724, 27230), (778, 25340), (905, 21784), (1267, 15560), (1448, 13615), (1556, 12670), (1810, 10892), (1945, 10136), (2534, 7780), (2723, 7240), (3112, 6335), (3620, 5446), (3890, 5068)]