28578004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{78511}}^1$

素因数の和:78535

約数の個数: 24

約数和(自身を含む): 61553408

約数和(自身を除く): 32975404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 78511, 157022, 314044, 549577, 1020643, 1099154, 2041286, 2198308, 4082572, 7144501, 14289002, 28578004]

約数ペア:

[(1, 28578004), (2, 14289002), (4, 7144501), (7, 4082572), (13, 2198308), (14, 2041286), (26, 1099154), (28, 1020643), (52, 549577), (91, 314044), (182, 157022), (364, 78511)]