209541340

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{108011}}^1$

素因数の和:108117

約数の個数: 24

約数和(自身を含む): 444577392

約数和(自身を除く): 235036052

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 108011, 216022, 432044, 540055, 1080110, 2160220, 10477067, 20954134, 41908268, 52385335, 104770670, 209541340]

約数ペア:

[(1, 209541340), (2, 104770670), (4, 52385335), (5, 41908268), (10, 20954134), (20, 10477067), (97, 2160220), (194, 1080110), (388, 540055), (485, 432044), (970, 216022), (1940, 108011)]