19627240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{6911}}^1$

素因数の和:6993

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 25162520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 6911, 13822, 27644, 34555, 55288, 69110, 138220, 276440, 490681, 981362, 1962724, 2453405, 3925448, 4906810, 9813620, 19627240]

約数ペア:

[(1, 19627240), (2, 9813620), (4, 4906810), (5, 3925448), (8, 2453405), (10, 1962724), (20, 981362), (40, 490681), (71, 276440), (142, 138220), (284, 69110), (355, 55288), (568, 34555), (710, 27644), (1420, 13822), (2840, 6911)]