80327440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1229}}^1$

素因数の和:1304

約数の個数: 80

約数和(自身を含む): 201326400

約数和(自身を除く): 120998960

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 43, 76, 80, 86, 95, 152, 172, 190, 215, 304, 344, 380, 430, 688, 760, 817, 860, 1229, 1520, 1634, 1720, 2458, 3268, 3440, 4085, 4916, 6145, 6536, 8170, 9832, 12290, 13072, 16340, 19664, 23351, 24580, 32680, 46702, 49160, 52847, 65360, 93404, 98320, 105694, 116755, 186808, 211388, 233510, 264235, 373616, 422776, 467020, 528470, 845552, 934040, 1004093, 1056940, 1868080, 2008186, 2113880, 4016372, 4227760, 5020465, 8032744, 10040930, 16065488, 20081860, 40163720, 80327440]

約数ペア:

[(1, 80327440), (2, 40163720), (4, 20081860), (5, 16065488), (8, 10040930), (10, 8032744), (16, 5020465), (19, 4227760), (20, 4016372), (38, 2113880), (40, 2008186), (43, 1868080), (76, 1056940), (80, 1004093), (86, 934040), (95, 845552), (152, 528470), (172, 467020), (190, 422776), (215, 373616), (304, 264235), (344, 233510), (380, 211388), (430, 186808), (688, 116755), (760, 105694), (817, 98320), (860, 93404), (1229, 65360), (1520, 52847), (1634, 49160), (1720, 46702), (2458, 32680), (3268, 24580), (3440, 23351), (4085, 19664), (4916, 16340), (6145, 13072), (6536, 12290), (8170, 9832)]