1857990040

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{220141}}^1$

素因数の和:220363

約数の個数: 32

約数和(自身を含む): 4200309360

約数和(自身を除く): 2342319320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 220141, 440282, 880564, 1100705, 1761128, 2201410, 4402820, 8805640, 46449751, 92899502, 185799004, 232248755, 371598008, 464497510, 928995020, 1857990040]

約数ペア:

[(1, 1857990040), (2, 928995020), (4, 464497510), (5, 371598008), (8, 232248755), (10, 185799004), (20, 92899502), (40, 46449751), (211, 8805640), (422, 4402820), (844, 2201410), (1055, 1761128), (1688, 1100705), (2110, 880564), (4220, 440282), (8440, 220141)]