28547260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203909}}^1$

素因数の和:203925

約数の個数: 24

約数和(自身を含む): 68513760

約数和(自身を除く): 39966500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203909, 407818, 815636, 1019545, 1427363, 2039090, 2854726, 4078180, 5709452, 7136815, 14273630, 28547260]

約数ペア:

[(1, 28547260), (2, 14273630), (4, 7136815), (5, 5709452), (7, 4078180), (10, 2854726), (14, 2039090), (20, 1427363), (28, 1019545), (35, 815636), (70, 407818), (140, 203909)]