28328615

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2689}}^1$

素因数の和:2751

約数の個数: 24

約数和(自身を含む): 40479120

約数和(自身を除く): 12150505

約数列:

[1, 5, 7, 35, 43, 49, 215, 245, 301, 1505, 2107, 2689, 10535, 13445, 18823, 94115, 115627, 131761, 578135, 658805, 809389, 4046945, 5665723, 28328615]

約数ペア:

[(1, 28328615), (5, 5665723), (7, 4046945), (35, 809389), (43, 658805), (49, 578135), (215, 131761), (245, 115627), (301, 94115), (1505, 18823), (2107, 13445), (2689, 10535)]