28613284

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 59754240

約数和(自身を除く): 31140956

約数列:

[1, 2, 4, 7, 14, 28, 37, 71, 74, 142, 148, 259, 284, 389, 497, 518, 778, 994, 1036, 1556, 1988, 2627, 2723, 5254, 5446, 10508, 10892, 14393, 18389, 27619, 28786, 36778, 55238, 57572, 73556, 100751, 110476, 193333, 201502, 386666, 403004, 773332, 1021903, 2043806, 4087612, 7153321, 14306642, 28613284]

約数ペア:

[(1, 28613284), (2, 14306642), (4, 7153321), (7, 4087612), (14, 2043806), (28, 1021903), (37, 773332), (71, 403004), (74, 386666), (142, 201502), (148, 193333), (259, 110476), (284, 100751), (389, 73556), (497, 57572), (518, 55238), (778, 36778), (994, 28786), (1036, 27619), (1556, 18389), (1988, 14393), (2627, 10892), (2723, 10508), (5254, 5446)]