28764970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{541}}^1$

素因数の和:970

約数の個数: 32

約数和(自身を含む): 55999440

約数和(自身を除く): 27234470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 409, 541, 818, 1082, 2045, 2705, 4090, 5317, 5410, 7033, 10634, 14066, 26585, 35165, 53170, 70330, 221269, 442538, 1106345, 2212690, 2876497, 5752994, 14382485, 28764970]

約数ペア:

[(1, 28764970), (2, 14382485), (5, 5752994), (10, 2876497), (13, 2212690), (26, 1106345), (65, 442538), (130, 221269), (409, 70330), (541, 53170), (818, 35165), (1082, 26585), (2045, 14066), (2705, 10634), (4090, 7033), (5317, 5410)]