19051580

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22153}}^1$

素因数の和:22205

約数の個数: 24

約数和(自身を含む): 40940592

約数和(自身を除く): 21889012

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22153, 44306, 88612, 110765, 221530, 443060, 952579, 1905158, 3810316, 4762895, 9525790, 19051580]

約数ペア:

[(1, 19051580), (2, 9525790), (4, 4762895), (5, 3810316), (10, 1905158), (20, 952579), (43, 443060), (86, 221530), (172, 110765), (215, 88612), (430, 44306), (860, 22153)]