18020665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 24514560

約数和(自身を除く): 6493895

約数列:

[1, 5, 13, 37, 59, 65, 127, 185, 295, 481, 635, 767, 1651, 2183, 2405, 3835, 4699, 7493, 8255, 10915, 23495, 28379, 37465, 61087, 97409, 141895, 277241, 305435, 487045, 1386205, 3604133, 18020665]

約数ペア:

[(1, 18020665), (5, 3604133), (13, 1386205), (37, 487045), (59, 305435), (65, 277241), (127, 141895), (185, 97409), (295, 61087), (481, 37465), (635, 28379), (767, 23495), (1651, 10915), (2183, 8255), (2405, 7493), (3835, 4699)]