81702515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1\times {\mathrm{1223}}^1$

素因数の和:1690

約数の個数: 16

約数和(自身を含む): 101523456

約数和(自身を除く): 19820941

約数列:

[1, 5, 31, 155, 431, 1223, 2155, 6115, 13361, 37913, 66805, 189565, 527113, 2635565, 16340503, 81702515]

約数ペア:

[(1, 81702515), (5, 16340503), (31, 2635565), (155, 527113), (431, 189565), (1223, 66805), (2155, 37913), (6115, 13361)]