28262910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72469}}^1$

素因数の和:72492

約数の個数: 32

約数和(自身を含む): 73049760

約数和(自身を除く): 44786850

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72469, 144938, 217407, 362345, 434814, 724690, 942097, 1087035, 1884194, 2174070, 2826291, 4710485, 5652582, 9420970, 14131455, 28262910]

約数ペア:

[(1, 28262910), (2, 14131455), (3, 9420970), (5, 5652582), (6, 4710485), (10, 2826291), (13, 2174070), (15, 1884194), (26, 1087035), (30, 942097), (39, 724690), (65, 434814), (78, 362345), (130, 217407), (195, 144938), (390, 72469)]