80412920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5861}}^1$

素因数の和:5893

約数の個数: 64

約数和(自身を含む): 211032000

約数和(自身を除く): 130619080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 5861, 6860, 11722, 13720, 23444, 29305, 41027, 46888, 58610, 82054, 117220, 164108, 205135, 234440, 287189, 328216, 410270, 574378, 820540, 1148756, 1435945, 1641080, 2010323, 2297512, 2871890, 4020646, 5743780, 8041292, 10051615, 11487560, 16082584, 20103230, 40206460, 80412920]

約数ペア:

[(1, 80412920), (2, 40206460), (4, 20103230), (5, 16082584), (7, 11487560), (8, 10051615), (10, 8041292), (14, 5743780), (20, 4020646), (28, 2871890), (35, 2297512), (40, 2010323), (49, 1641080), (56, 1435945), (70, 1148756), (98, 820540), (140, 574378), (196, 410270), (245, 328216), (280, 287189), (343, 234440), (392, 205135), (490, 164108), (686, 117220), (980, 82054), (1372, 58610), (1715, 46888), (1960, 41027), (2744, 29305), (3430, 23444), (5861, 13720), (6860, 11722)]