18802840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67153}}^1$

素因数の和:67171

約数の個数: 32

約数和(自身を含む): 48350880

約数和(自身を除く): 29548040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67153, 134306, 268612, 335765, 470071, 537224, 671530, 940142, 1343060, 1880284, 2350355, 2686120, 3760568, 4700710, 9401420, 18802840]

約数ペア:

[(1, 18802840), (2, 9401420), (4, 4700710), (5, 3760568), (7, 2686120), (8, 2350355), (10, 1880284), (14, 1343060), (20, 940142), (28, 671530), (35, 537224), (40, 470071), (56, 335765), (70, 268612), (140, 134306), (280, 67153)]