209219300

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{21569}}^1$

素因数の和:21680

約数の個数: 36

約数和(自身を含む): 458707620

約数和(自身を除く): 249488320

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2425, 4850, 9700, 21569, 43138, 86276, 107845, 215690, 431380, 539225, 1078450, 2092193, 2156900, 4184386, 8368772, 10460965, 20921930, 41843860, 52304825, 104609650, 209219300]

約数ペア:

[(1, 209219300), (2, 104609650), (4, 52304825), (5, 41843860), (10, 20921930), (20, 10460965), (25, 8368772), (50, 4184386), (97, 2156900), (100, 2092193), (194, 1078450), (388, 539225), (485, 431380), (970, 215690), (1940, 107845), (2425, 86276), (4850, 43138), (9700, 21569)]