20120335

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:271

約数の個数: 24

約数和(自身を含む): 26005536

約数和(自身を除く): 5885201

約数列:

[1, 5, 19, 71, 95, 157, 355, 361, 785, 1349, 1805, 2983, 6745, 11147, 14915, 25631, 55735, 56677, 128155, 211793, 283385, 1058965, 4024067, 20120335]

約数ペア:

[(1, 20120335), (5, 4024067), (19, 1058965), (71, 283385), (95, 211793), (157, 128155), (355, 56677), (361, 55735), (785, 25631), (1349, 14915), (1805, 11147), (2983, 6745)]