28001428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1$

素因数の和:1856

約数の個数: 48

約数和(自身を含む): 61747840

約数和(自身を除く): 33746412

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 43, 52, 86, 91, 172, 182, 301, 364, 559, 602, 1118, 1204, 1789, 2236, 3578, 3913, 7156, 7826, 12523, 15652, 23257, 25046, 46514, 50092, 76927, 93028, 153854, 162799, 307708, 325598, 538489, 651196, 1000051, 1076978, 2000102, 2153956, 4000204, 7000357, 14000714, 28001428]

約数ペア:

[(1, 28001428), (2, 14000714), (4, 7000357), (7, 4000204), (13, 2153956), (14, 2000102), (26, 1076978), (28, 1000051), (43, 651196), (52, 538489), (86, 325598), (91, 307708), (172, 162799), (182, 153854), (301, 93028), (364, 76927), (559, 50092), (602, 46514), (1118, 25046), (1204, 23257), (1789, 15652), (2236, 12523), (3578, 7826), (3913, 7156)]