18179420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129853}}^1$

素因数の和:129869

約数の個数: 24

約数和(自身を含む): 43630944

約数和(自身を除く): 25451524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129853, 259706, 519412, 649265, 908971, 1298530, 1817942, 2597060, 3635884, 4544855, 9089710, 18179420]

約数ペア:

[(1, 18179420), (2, 9089710), (4, 4544855), (5, 3635884), (7, 2597060), (10, 1817942), (14, 1298530), (20, 908971), (28, 649265), (35, 519412), (70, 259706), (140, 129853)]