217422820

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{9629}}^1$

素因数の和:10767

約数の個数: 24

約数和(自身を含む): 457039800

約数和(自身を除く): 239616980

約数列:

[1, 2, 4, 5, 10, 20, 1129, 2258, 4516, 5645, 9629, 11290, 19258, 22580, 38516, 48145, 96290, 192580, 10871141, 21742282, 43484564, 54355705, 108711410, 217422820]

約数ペア:

[(1, 217422820), (2, 108711410), (4, 54355705), (5, 43484564), (10, 21742282), (20, 10871141), (1129, 192580), (2258, 96290), (4516, 48145), (5645, 38516), (9629, 22580), (11290, 19258)]