87117340

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{22111}}^1$

素因数の和:22317

約数の個数: 24

約数和(自身を含む): 183883392

約数和(自身を除く): 96766052

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 22111, 44222, 88444, 110555, 221110, 442220, 4355867, 8711734, 17423468, 21779335, 43558670, 87117340]

約数ペア:

[(1, 87117340), (2, 43558670), (4, 21779335), (5, 17423468), (10, 8711734), (20, 4355867), (197, 442220), (394, 221110), (788, 110555), (985, 88444), (1970, 44222), (3940, 22111)]