19455271040

素因数分解:

$2^7\times 5^1\times {\mathrm{251}}^1\times {\mathrm{281}}^1\times {\mathrm{431}}^1$

素因数の和:982

約数の個数: 128

約数和(自身を含む): 46970461440

約数和(自身を除く): 27515190400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 281, 320, 431, 502, 562, 640, 862, 1004, 1124, 1255, 1405, 1724, 2008, 2155, 2248, 2510, 2810, 3448, 4016, 4310, 4496, 5020, 5620, 6896, 8032, 8620, 8992, 10040, 11240, 13792, 16064, 17240, 17984, 20080, 22480, 27584, 32128, 34480, 35968, 40160, 44960, 55168, 68960, 70531, 80320, 89920, 108181, 121111, 137920, 141062, 160640, 179840, 216362, 242222, 275840, 282124, 352655, 432724, 484444, 540905, 564248, 605555, 705310, 865448, 968888, 1081810, 1128496, 1211110, 1410620, 1730896, 1937776, 2163620, 2256992, 2422220, 2821240, 3461792, 3875552, 4327240, 4513984, 4844440, 5642480, 6923584, 7751104, 8654480, 9027968, 9688880, 11284960, 13847168, 15502208, 17308960, 19377760, 22569920, 30398861, 34617920, 38755520, 45139840, 60797722, 69235840, 77511040, 121595444, 151994305, 243190888, 303988610, 486381776, 607977220, 972763552, 1215954440, 1945527104, 2431908880, 3891054208, 4863817760, 9727635520, 19455271040]

約数ペア:

[(1, 19455271040), (2, 9727635520), (4, 4863817760), (5, 3891054208), (8, 2431908880), (10, 1945527104), (16, 1215954440), (20, 972763552), (32, 607977220), (40, 486381776), (64, 303988610), (80, 243190888), (128, 151994305), (160, 121595444), (251, 77511040), (281, 69235840), (320, 60797722), (431, 45139840), (502, 38755520), (562, 34617920), (640, 30398861), (862, 22569920), (1004, 19377760), (1124, 17308960), (1255, 15502208), (1405, 13847168), (1724, 11284960), (2008, 9688880), (2155, 9027968), (2248, 8654480), (2510, 7751104), (2810, 6923584), (3448, 5642480), (4016, 4844440), (4310, 4513984), (4496, 4327240), (5020, 3875552), (5620, 3461792), (6896, 2821240), (8032, 2422220), (8620, 2256992), (8992, 2163620), (10040, 1937776), (11240, 1730896), (13792, 1410620), (16064, 1211110), (17240, 1128496), (17984, 1081810), (20080, 968888), (22480, 865448), (27584, 705310), (32128, 605555), (34480, 564248), (35968, 540905), (40160, 484444), (44960, 432724), (55168, 352655), (68960, 282124), (70531, 275840), (80320, 242222), (89920, 216362), (108181, 179840), (121111, 160640), (137920, 141062)]