2516610680

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{491}}^1\times {\mathrm{1321}}^1$

素因数の和:1920

約数の個数: 64

約数和(自身を含む): 5736739680

約数和(自身を除く): 3220129000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 491, 776, 970, 982, 1321, 1940, 1964, 2455, 2642, 3880, 3928, 4910, 5284, 6605, 9820, 10568, 13210, 19640, 26420, 47627, 52840, 95254, 128137, 190508, 238135, 256274, 381016, 476270, 512548, 640685, 648611, 952540, 1025096, 1281370, 1297222, 1905080, 2562740, 2594444, 3243055, 5125480, 5188888, 6486110, 12972220, 25944440, 62915267, 125830534, 251661068, 314576335, 503322136, 629152670, 1258305340, 2516610680]

約数ペア:

[(1, 2516610680), (2, 1258305340), (4, 629152670), (5, 503322136), (8, 314576335), (10, 251661068), (20, 125830534), (40, 62915267), (97, 25944440), (194, 12972220), (388, 6486110), (485, 5188888), (491, 5125480), (776, 3243055), (970, 2594444), (982, 2562740), (1321, 1905080), (1940, 1297222), (1964, 1281370), (2455, 1025096), (2642, 952540), (3880, 648611), (3928, 640685), (4910, 512548), (5284, 476270), (6605, 381016), (9820, 256274), (10568, 238135), (13210, 190508), (19640, 128137), (26420, 95254), (47627, 52840)]