20069890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1447}}^1$

素因数の和:1546

約数の個数: 32

約数和(自身を含む): 38574720

約数和(自身を除く): 18504830

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 1447, 2774, 2894, 6935, 7235, 13870, 14470, 27493, 54986, 105631, 137465, 211262, 274930, 528155, 1056310, 2006989, 4013978, 10034945, 20069890]

約数ペア:

[(1, 20069890), (2, 10034945), (5, 4013978), (10, 2006989), (19, 1056310), (38, 528155), (73, 274930), (95, 211262), (146, 137465), (190, 105631), (365, 54986), (730, 27493), (1387, 14470), (1447, 13870), (2774, 7235), (2894, 6935)]