17789890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{859}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 34056000

約数和(自身を除く): 16266110

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 859, 1090, 1718, 2071, 4142, 4295, 8590, 10355, 16321, 20710, 32642, 81605, 93631, 163210, 187262, 468155, 936310, 1778989, 3557978, 8894945, 17789890]

約数ペア:

[(1, 17789890), (2, 8894945), (5, 3557978), (10, 1778989), (19, 936310), (38, 468155), (95, 187262), (109, 163210), (190, 93631), (218, 81605), (545, 32642), (859, 20710), (1090, 16321), (1718, 10355), (2071, 8590), (4142, 4295)]