18927620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1789}}^1$

素因数の和:1844

約数の個数: 36

約数和(自身を含む): 41574540

約数和(自身を除く): 22646920

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 1789, 2116, 2645, 3578, 5290, 7156, 8945, 10580, 17890, 35780, 41147, 82294, 164588, 205735, 411470, 822940, 946381, 1892762, 3785524, 4731905, 9463810, 18927620]

約数ペア:

[(1, 18927620), (2, 9463810), (4, 4731905), (5, 3785524), (10, 1892762), (20, 946381), (23, 822940), (46, 411470), (92, 205735), (115, 164588), (230, 82294), (460, 41147), (529, 35780), (1058, 17890), (1789, 10580), (2116, 8945), (2645, 7156), (3578, 5290)]