20286890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1381}}^1$

素因数の和:1514

約数の個数: 32

約数和(自身を含む): 39702096

約数和(自身を除く): 19415206

約数列:

[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1381, 1469, 2762, 2938, 6905, 7345, 13810, 14690, 17953, 35906, 89765, 156053, 179530, 312106, 780265, 1560530, 2028689, 4057378, 10143445, 20286890]

約数ペア:

[(1, 20286890), (2, 10143445), (5, 4057378), (10, 2028689), (13, 1560530), (26, 780265), (65, 312106), (113, 179530), (130, 156053), (226, 89765), (565, 35906), (1130, 17953), (1381, 14690), (1469, 13810), (2762, 7345), (2938, 6905)]