19991230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15031}}^1$

素因数の和:15064

約数の個数: 32

約数和(自身を含む): 43292160

約数和(自身を除く): 23300930

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15031, 30062, 75155, 105217, 150310, 210434, 285589, 526085, 571178, 1052170, 1427945, 1999123, 2855890, 3998246, 9995615, 19991230]

約数ペア:

[(1, 19991230), (2, 9995615), (5, 3998246), (7, 2855890), (10, 1999123), (14, 1427945), (19, 1052170), (35, 571178), (38, 526085), (70, 285589), (95, 210434), (133, 150310), (190, 105217), (266, 75155), (665, 30062), (1330, 15031)]