19440440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16759}}^1$

素因数の和:16799

約数の個数: 32

約数和(自身を含む): 45252000

約数和(自身を除く): 25811560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 16759, 33518, 67036, 83795, 134072, 167590, 335180, 486011, 670360, 972022, 1944044, 2430055, 3888088, 4860110, 9720220, 19440440]

約数ペア:

[(1, 19440440), (2, 9720220), (4, 4860110), (5, 3888088), (8, 2430055), (10, 1944044), (20, 972022), (29, 670360), (40, 486011), (58, 335180), (116, 167590), (145, 134072), (232, 83795), (290, 67036), (580, 33518), (1160, 16759)]