18704950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:573

約数の個数: 48

約数和(自身を含む): 38568960

約数和(自身を除く): 19864010

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 71, 110, 142, 275, 355, 479, 550, 710, 781, 958, 1562, 1775, 2395, 3550, 3905, 4790, 5269, 7810, 10538, 11975, 19525, 23950, 26345, 34009, 39050, 52690, 68018, 131725, 170045, 263450, 340090, 374099, 748198, 850225, 1700450, 1870495, 3740990, 9352475, 18704950]

約数ペア:

[(1, 18704950), (2, 9352475), (5, 3740990), (10, 1870495), (11, 1700450), (22, 850225), (25, 748198), (50, 374099), (55, 340090), (71, 263450), (110, 170045), (142, 131725), (275, 68018), (355, 52690), (479, 39050), (550, 34009), (710, 26345), (781, 23950), (958, 19525), (1562, 11975), (1775, 10538), (2395, 7810), (3550, 5269), (3905, 4790)]