1640348080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{14869}}^1$

素因数の和:15086

約数の個数: 80

約数和(自身を含む): 4381058880

約数和(自身を除く): 2740710800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 985, 1379, 1576, 1970, 2758, 3152, 3940, 5516, 6895, 7880, 11032, 13790, 14869, 15760, 22064, 27580, 29738, 55160, 59476, 74345, 104083, 110320, 118952, 148690, 208166, 237904, 297380, 416332, 520415, 594760, 832664, 1040830, 1189520, 1665328, 2081660, 2929193, 4163320, 5858386, 8326640, 11716772, 14645965, 20504351, 23433544, 29291930, 41008702, 46867088, 58583860, 82017404, 102521755, 117167720, 164034808, 205043510, 234335440, 328069616, 410087020, 820174040, 1640348080]

約数ペア:

[(1, 1640348080), (2, 820174040), (4, 410087020), (5, 328069616), (7, 234335440), (8, 205043510), (10, 164034808), (14, 117167720), (16, 102521755), (20, 82017404), (28, 58583860), (35, 46867088), (40, 41008702), (56, 29291930), (70, 23433544), (80, 20504351), (112, 14645965), (140, 11716772), (197, 8326640), (280, 5858386), (394, 4163320), (560, 2929193), (788, 2081660), (985, 1665328), (1379, 1189520), (1576, 1040830), (1970, 832664), (2758, 594760), (3152, 520415), (3940, 416332), (5516, 297380), (6895, 237904), (7880, 208166), (11032, 148690), (13790, 118952), (14869, 110320), (15760, 104083), (22064, 74345), (27580, 59476), (29738, 55160)]