20519105

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{1579}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 5418175

約数列:

[1, 5, 23, 113, 115, 565, 1579, 2599, 7895, 12995, 36317, 178427, 181585, 892135, 4103821, 20519105]

約数ペア:

[(1, 20519105), (5, 4103821), (23, 892135), (113, 181585), (115, 178427), (565, 36317), (1579, 12995), (2599, 7895)]