78955280

素因数分解:

$2^4\times 5^1\times {\mathrm{986941}}^1$

素因数の和:986954

約数の個数: 20

約数和(自身を含む): 183571212

約数和(自身を除く): 104615932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 986941, 1973882, 3947764, 4934705, 7895528, 9869410, 15791056, 19738820, 39477640, 78955280]

約数ペア:

[(1, 78955280), (2, 39477640), (4, 19738820), (5, 15791056), (8, 9869410), (10, 7895528), (16, 4934705), (20, 3947764), (40, 1973882), (80, 986941)]