131405985

素因数分解:

$3^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{5737}}^1$

素因数の和:6257

約数の個数: 24

約数和(自身を含む): 228257640

約数和(自身を除く): 96851655

約数列:

[1, 3, 5, 9, 15, 45, 509, 1527, 2545, 4581, 5737, 7635, 17211, 22905, 28685, 51633, 86055, 258165, 2920133, 8760399, 14600665, 26281197, 43801995, 131405985]

約数ペア:

[(1, 131405985), (3, 43801995), (5, 26281197), (9, 14600665), (15, 8760399), (45, 2920133), (509, 258165), (1527, 86055), (2545, 51633), (4581, 28685), (5737, 22905), (7635, 17211)]