81641420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{583153}}^1$

素因数の和:583169

約数の個数: 24

約数和(自身を含む): 195939744

約数和(自身を除く): 114298324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 583153, 1166306, 2332612, 2915765, 4082071, 5831530, 8164142, 11663060, 16328284, 20410355, 40820710, 81641420]

約数ペア:

[(1, 81641420), (2, 40820710), (4, 20410355), (5, 16328284), (7, 11663060), (10, 8164142), (14, 5831530), (20, 4082071), (28, 2915765), (35, 2332612), (70, 1166306), (140, 583153)]