1999382672

素因数分解:

$2^4\times 7^3\times {\mathrm{139}}^1\times {\mathrm{2621}}^1$

素因数の和:2789

約数の個数: 80

約数和(自身を含む): 4551792000

約数和(自身を除く): 2552409328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 139, 196, 278, 343, 392, 556, 686, 784, 973, 1112, 1372, 1946, 2224, 2621, 2744, 3892, 5242, 5488, 6811, 7784, 10484, 13622, 15568, 18347, 20968, 27244, 36694, 41936, 47677, 54488, 73388, 95354, 108976, 128429, 146776, 190708, 256858, 293552, 364319, 381416, 513716, 728638, 762832, 899003, 1027432, 1457276, 1798006, 2054864, 2550233, 2914552, 3596012, 5100466, 5829104, 7192024, 10200932, 14384048, 17851631, 20401864, 35703262, 40803728, 71406524, 124961417, 142813048, 249922834, 285626096, 499845668, 999691336, 1999382672]

約数ペア:

[(1, 1999382672), (2, 999691336), (4, 499845668), (7, 285626096), (8, 249922834), (14, 142813048), (16, 124961417), (28, 71406524), (49, 40803728), (56, 35703262), (98, 20401864), (112, 17851631), (139, 14384048), (196, 10200932), (278, 7192024), (343, 5829104), (392, 5100466), (556, 3596012), (686, 2914552), (784, 2550233), (973, 2054864), (1112, 1798006), (1372, 1457276), (1946, 1027432), (2224, 899003), (2621, 762832), (2744, 728638), (3892, 513716), (5242, 381416), (5488, 364319), (6811, 293552), (7784, 256858), (10484, 190708), (13622, 146776), (15568, 128429), (18347, 108976), (20968, 95354), (27244, 73388), (36694, 54488), (41936, 47677)]