78244180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79841}}^1$

素因数の和:79864

約数の個数: 36

約数和(自身を含む): 191141748

約数和(自身を除く): 112897568

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 79841, 159682, 319364, 399205, 558887, 798410, 1117774, 1596820, 2235548, 2794435, 3912209, 5588870, 7824418, 11177740, 15648836, 19561045, 39122090, 78244180]

約数ペア:

[(1, 78244180), (2, 39122090), (4, 19561045), (5, 15648836), (7, 11177740), (10, 7824418), (14, 5588870), (20, 3912209), (28, 2794435), (35, 2235548), (49, 1596820), (70, 1117774), (98, 798410), (140, 558887), (196, 399205), (245, 319364), (490, 159682), (980, 79841)]