19680290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1069}}^1$

素因数の和:1346

約数の個数: 32

約数和(自身を含む): 40677120

約数和(自身を除く): 20996830

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 263, 526, 1069, 1315, 1841, 2138, 2630, 3682, 5345, 7483, 9205, 10690, 14966, 18410, 37415, 74830, 281147, 562294, 1405735, 1968029, 2811470, 3936058, 9840145, 19680290]

約数ペア:

[(1, 19680290), (2, 9840145), (5, 3936058), (7, 2811470), (10, 1968029), (14, 1405735), (35, 562294), (70, 281147), (263, 74830), (526, 37415), (1069, 18410), (1315, 14966), (1841, 10690), (2138, 9205), (2630, 7483), (3682, 5345)]