27881420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199153}}^1$

素因数の和:199169

約数の個数: 24

約数和(自身を含む): 66915744

約数和(自身を除く): 39034324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199153, 398306, 796612, 995765, 1394071, 1991530, 2788142, 3983060, 5576284, 6970355, 13940710, 27881420]

約数ペア:

[(1, 27881420), (2, 13940710), (4, 6970355), (5, 5576284), (7, 3983060), (10, 2788142), (14, 1991530), (20, 1394071), (28, 995765), (35, 796612), (70, 398306), (140, 199153)]