405320408

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{5981}}^1$

素因数の和:6227

約数の個数: 32

約数和(自身を含む): 781727760

約数和(自身を除く): 376407352

約数列:

[1, 2, 4, 8, 43, 86, 172, 197, 344, 394, 788, 1576, 5981, 8471, 11962, 16942, 23924, 33884, 47848, 67768, 257183, 514366, 1028732, 1178257, 2057464, 2356514, 4713028, 9426056, 50665051, 101330102, 202660204, 405320408]

約数ペア:

[(1, 405320408), (2, 202660204), (4, 101330102), (8, 50665051), (43, 9426056), (86, 4713028), (172, 2356514), (197, 2057464), (344, 1178257), (394, 1028732), (788, 514366), (1576, 257183), (5981, 67768), (8471, 47848), (11962, 33884), (16942, 23924)]