28399105

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{6389}}^1$

素因数の和:6528

約数の個数: 16

約数和(自身を含む): 39260160

約数和(自身を除く): 10861055

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 6389, 31945, 44723, 223615, 811403, 4057015, 5679821, 28399105]

約数ペア:

[(1, 28399105), (5, 5679821), (7, 4057015), (35, 811403), (127, 223615), (635, 44723), (889, 31945), (4445, 6389)]