20870600

素因数分解:

$2^3\times 5^2\times {\mathrm{241}}^1\times {\mathrm{433}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 48838020

約数和(自身を除く): 27967420

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 241, 433, 482, 866, 964, 1205, 1732, 1928, 2165, 2410, 3464, 4330, 4820, 6025, 8660, 9640, 10825, 12050, 17320, 21650, 24100, 43300, 48200, 86600, 104353, 208706, 417412, 521765, 834824, 1043530, 2087060, 2608825, 4174120, 5217650, 10435300, 20870600]

約数ペア:

[(1, 20870600), (2, 10435300), (4, 5217650), (5, 4174120), (8, 2608825), (10, 2087060), (20, 1043530), (25, 834824), (40, 521765), (50, 417412), (100, 208706), (200, 104353), (241, 86600), (433, 48200), (482, 43300), (866, 24100), (964, 21650), (1205, 17320), (1732, 12050), (1928, 10825), (2165, 9640), (2410, 8660), (3464, 6025), (4330, 4820)]