20176859420

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10400443}}^1$

素因数の和:10400549

約数の個数: 24

約数和(自身を含む): 42808227504

約数和(自身を除く): 22631368084

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10400443, 20800886, 41601772, 52002215, 104004430, 208008860, 1008842971, 2017685942, 4035371884, 5044214855, 10088429710, 20176859420]

約数ペア:

[(1, 20176859420), (2, 10088429710), (4, 5044214855), (5, 4035371884), (10, 2017685942), (20, 1008842971), (97, 208008860), (194, 104004430), (388, 52002215), (485, 41601772), (970, 20800886), (1940, 10400443)]