208336895

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{103393}}^1$

素因数の和:103442

約数の個数: 16

約数和(自身を含む): 277923072

約数和(自身を除く): 69586177

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 103393, 516965, 1344109, 3205183, 6720545, 16025915, 41667379, 208336895]

約数ペア:

[(1, 208336895), (5, 41667379), (13, 16025915), (31, 6720545), (65, 3205183), (155, 1344109), (403, 516965), (2015, 103393)]