20140820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{491}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 48601728

約数和(自身を除く): 28460908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 293, 491, 586, 982, 1172, 1465, 1964, 2051, 2455, 2930, 3437, 4102, 4910, 5860, 6874, 8204, 9820, 10255, 13748, 17185, 20510, 34370, 41020, 68740, 143863, 287726, 575452, 719315, 1007041, 1438630, 2014082, 2877260, 4028164, 5035205, 10070410, 20140820]

約数ペア:

[(1, 20140820), (2, 10070410), (4, 5035205), (5, 4028164), (7, 2877260), (10, 2014082), (14, 1438630), (20, 1007041), (28, 719315), (35, 575452), (70, 287726), (140, 143863), (293, 68740), (491, 41020), (586, 34370), (982, 20510), (1172, 17185), (1465, 13748), (1964, 10255), (2051, 9820), (2455, 8204), (2930, 6874), (3437, 5860), (4102, 4910)]