82801720

素因数分解:

$2^3\times 5^1\times {\mathrm{2070043}}^1$

素因数の和:2070054

約数の個数: 16

約数和(自身を含む): 186303960

約数和(自身を除く): 103502240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2070043, 4140086, 8280172, 10350215, 16560344, 20700430, 41400860, 82801720]

約数ペア:

[(1, 82801720), (2, 41400860), (4, 20700430), (5, 16560344), (8, 10350215), (10, 8280172), (20, 4140086), (40, 2070043)]