28685412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1279}}^1$

素因数の和:1385

約数の個数: 72

約数和(自身を含む): 83865600

約数和(自身を除く): 55180188

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 89, 126, 178, 252, 267, 356, 534, 623, 801, 1068, 1246, 1279, 1602, 1869, 2492, 2558, 3204, 3738, 3837, 5116, 5607, 7476, 7674, 8953, 11214, 11511, 15348, 17906, 22428, 23022, 26859, 35812, 46044, 53718, 80577, 107436, 113831, 161154, 227662, 322308, 341493, 455324, 682986, 796817, 1024479, 1365972, 1593634, 2048958, 2390451, 3187268, 4097916, 4780902, 7171353, 9561804, 14342706, 28685412]

約数ペア:

[(1, 28685412), (2, 14342706), (3, 9561804), (4, 7171353), (6, 4780902), (7, 4097916), (9, 3187268), (12, 2390451), (14, 2048958), (18, 1593634), (21, 1365972), (28, 1024479), (36, 796817), (42, 682986), (63, 455324), (84, 341493), (89, 322308), (126, 227662), (178, 161154), (252, 113831), (267, 107436), (356, 80577), (534, 53718), (623, 46044), (801, 35812), (1068, 26859), (1246, 23022), (1279, 22428), (1602, 17906), (1869, 15348), (2492, 11511), (2558, 11214), (3204, 8953), (3738, 7674), (3837, 7476), (5116, 5607)]