20249515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 28901376

約数和(自身を除く): 8651861

約数列:

[1, 5, 11, 13, 55, 65, 127, 143, 223, 635, 715, 1115, 1397, 1651, 2453, 2899, 6985, 8255, 12265, 14495, 18161, 28321, 31889, 90805, 141605, 159445, 311531, 368173, 1557655, 1840865, 4049903, 20249515]

約数ペア:

[(1, 20249515), (5, 4049903), (11, 1840865), (13, 1557655), (55, 368173), (65, 311531), (127, 159445), (143, 141605), (223, 90805), (635, 31889), (715, 28321), (1115, 18161), (1397, 14495), (1651, 12265), (2453, 8255), (2899, 6985)]