19329040

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:208

約数の個数: 80

約数和(自身を含む): 47246976

約数和(自身を除く): 27917936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 71, 80, 82, 83, 142, 164, 166, 205, 284, 328, 332, 355, 410, 415, 568, 656, 664, 710, 820, 830, 1136, 1328, 1420, 1640, 1660, 2840, 2911, 3280, 3320, 3403, 5680, 5822, 5893, 6640, 6806, 11644, 11786, 13612, 14555, 17015, 23288, 23572, 27224, 29110, 29465, 34030, 46576, 47144, 54448, 58220, 58930, 68060, 94288, 116440, 117860, 136120, 232880, 235720, 241613, 272240, 471440, 483226, 966452, 1208065, 1932904, 2416130, 3865808, 4832260, 9664520, 19329040]

約数ペア:

[(1, 19329040), (2, 9664520), (4, 4832260), (5, 3865808), (8, 2416130), (10, 1932904), (16, 1208065), (20, 966452), (40, 483226), (41, 471440), (71, 272240), (80, 241613), (82, 235720), (83, 232880), (142, 136120), (164, 117860), (166, 116440), (205, 94288), (284, 68060), (328, 58930), (332, 58220), (355, 54448), (410, 47144), (415, 46576), (568, 34030), (656, 29465), (664, 29110), (710, 27224), (820, 23572), (830, 23288), (1136, 17015), (1328, 14555), (1420, 13612), (1640, 11786), (1660, 11644), (2840, 6806), (2911, 6640), (3280, 5893), (3320, 5822), (3403, 5680)]