29927920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{479}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 47210000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 440, 479, 568, 710, 781, 880, 958, 1136, 1420, 1562, 1916, 2395, 2840, 3124, 3832, 3905, 4790, 5269, 5680, 6248, 7664, 7810, 9580, 10538, 12496, 15620, 19160, 21076, 26345, 31240, 34009, 38320, 42152, 52690, 62480, 68018, 84304, 105380, 136036, 170045, 210760, 272072, 340090, 374099, 421520, 544144, 680180, 748198, 1360360, 1496396, 1870495, 2720720, 2992792, 3740990, 5985584, 7481980, 14963960, 29927920]

約数ペア:

[(1, 29927920), (2, 14963960), (4, 7481980), (5, 5985584), (8, 3740990), (10, 2992792), (11, 2720720), (16, 1870495), (20, 1496396), (22, 1360360), (40, 748198), (44, 680180), (55, 544144), (71, 421520), (80, 374099), (88, 340090), (110, 272072), (142, 210760), (176, 170045), (220, 136036), (284, 105380), (355, 84304), (440, 68018), (479, 62480), (568, 52690), (710, 42152), (781, 38320), (880, 34009), (958, 31240), (1136, 26345), (1420, 21076), (1562, 19160), (1916, 15620), (2395, 12496), (2840, 10538), (3124, 9580), (3832, 7810), (3905, 7664), (4790, 6248), (5269, 5680)]