80072860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{81707}}^1$

素因数の和:81730

約数の個数: 36

約数和(自身を含む): 195608952

約数和(自身を除く): 115536092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 81707, 163414, 326828, 408535, 571949, 817070, 1143898, 1634140, 2287796, 2859745, 4003643, 5719490, 8007286, 11438980, 16014572, 20018215, 40036430, 80072860]

約数ペア:

[(1, 80072860), (2, 40036430), (4, 20018215), (5, 16014572), (7, 11438980), (10, 8007286), (14, 5719490), (20, 4003643), (28, 2859745), (35, 2287796), (49, 1634140), (70, 1143898), (98, 817070), (140, 571949), (196, 408535), (245, 326828), (490, 163414), (980, 81707)]