20172568940

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1568629}}^1$

素因数の和:1569281

約数の個数: 24

約数和(自身を含む): 42428304240

約数和(自身を除く): 22255735300

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 1568629, 3137258, 6274516, 7843145, 15686290, 31372580, 1008628447, 2017256894, 4034513788, 5043142235, 10086284470, 20172568940]

約数ペア:

[(1, 20172568940), (2, 10086284470), (4, 5043142235), (5, 4034513788), (10, 2017256894), (20, 1008628447), (643, 31372580), (1286, 15686290), (2572, 7843145), (3215, 6274516), (6430, 3137258), (12860, 1568629)]